In this Mississippi diversity case, plaintiff James L. Jackson, a former shipyard worker, seeks recovery of actual and punitive damages against defendants JohnsManville Sales Corporation, RaybestosManhattan, Inc., and H.K. Porter Company, manufacturers of asbestos products, for injuries allegedly caused by the defendants’ failure to warn of the dangers associated with exposure to their asbestos products. Following extensive discovery and a lengthy jury trial, the district court entered judgment in favor of Jackson and against all defendants except H.K. Porter Company for $391,500 in compensatory damages and $625,000 in combined punitive damages. On appeal, a panel of this court affirmed in part, reversed in part, and remanded the case for a new trial. Jackson v. Johns-Manville Sales Corp., 727 F.2d 506 (5th Cir.1984). We granted en banc rehearing, 727 F.2d at 533, and now decide to certify to the Mississippi Supreme Court three significant questions of Mississippi law.
I. FACTUAL AND PROCEDURAL HISTORY.
The panel opinion fully sets forth the facts of this case, 727 F.2d at 509-11, and so we repeat them here only in summary fashion.
James L. Jackson worked for Ingalls Shipbuilding Corporation (Ingalls) at its yard in Pascagoula, Mississippi, from 1953 until 1971. During his tenure at Ingalls, Jackson worked first as a sheet-metal mechanic and then as a work leaderman or supervisor. As a sheet-metal mechanic, Jackson drilled holes in asbestos-containing materials and cut gaskets from asbestos cloth. While working as a work leader-man, Jackson was required to move around naval ships amidst craftsmen making extensive use of asbestos products. There is no question that Jackson in both capacities was exposed to significant quantities of asbestos dust.
Approximately seven years after leaving Ingalls, Jackson was diagnosed as having asbestosis, a progressive and incurable pulmonary disease caused by exposure to asbestos. As a result of the asbestosis, Jackson’s life expectancy was reduced and his lung capacity significantly impaired. Moreover, Jackson alleges that his exposure to the asbestos markedly increased his risk of contracting lung cancer and other malignancies. On November 21, 1978, Jackson joined with several other parties in filing a class action in federal district court against a number of manufacturers and sellers of asbestos materials that were allegedly used at Ingalls. Following the district court’s denial of class certification, Jackson filed an amended complaint against twelve defendants, eight of whom settled and one of whom was granted summary judgment. By the time of trial, the remaining defendants were Johns-Manville Sales Corporation (Johns-Manville); H.K. Porter Company, Inc. (H.K. Porter); and Raybestos-Manhattan, Inc. (RaybestosManhattan).1
Jackson argued at trial that the three defendants were liable under the Mississippi law of strict liability for manufacturing and selling asbestos products made unreasonably dangerous by the defendants’ failure to warn of the products’ inherent hazards. In addition, Jackson sought to recover punitive damages on the ground that the defendants had conspired to suppress information concerning the dangers of asbestos exposure and the disease of asbestosis for more than three decades. In response, the defendants contended principally that, because they neither knew nor had reasonable grounds to believe that their asbestos products posed any significant danger to shipyard workers, they could not be held responsible for Jackson’s injuries. The jury found that Johns-Manville and Raybes*1317tos-Manhattan were strictly liable to Jackson for $391,500 in compensatory damages. The jury also imposed punitive damages of $500,000 against Johns-Manville and $125,-000 against Raybestos-Manhattan. Finally, H.K. Porter was found to be not liable to Jackson. The district court entered judgment accordingly.
On appeal, a panel of this court affirmed in part, reversed in part, and remanded. 727 F.2d 506. Following an extensive review of both Mississippi caselaw and the instant record, the panel found that the district court had accurately applied the Mississippi law of strict liability and that sufficient evidence was adduced at trial to support the necessary finding of proximate cause. The panel moreover affirmed the trial court’s refusal to disclose to the jury the amounts for which Jackson had previously settled with eight of the initial defendants. The panel, nonetheless, ordered a new trial on the ground that the district court had committed reversible error in admitting two items of evidence that posed a substantial danger of unfair prejudice. First, the panel found that, because (1) Jackson did not allege that he suffered from cancer and (2) it was clearly established at trial that asbestosis itself does not cause or lead to cancer, the evidence of Jackson’s increased risk of contracting cancer introduced at trial was irrelevant or at least should have been excluded under Federal Rule of Evidence 403. The panel left to the district court’s initial discretion on retrial whether evidence of Jackson’s fear of cancer should be admitted and whether such a claim was even permitted by the pleadings. Second, the panel held that the “Sumner Simpson papers” were too remote in time and too attenuated in subject matter to be probative of any material fact and thus also should have been excluded under rule 402 for irrelevancy or at least under rule 403 for being unduly prejudicial. Finally, the panel held that the district court also erred in allowing the recovery of punitive damages. According to the panel, punitive damages are inappropriate “where the allowance of punitive damages carries the manifest portent of undoing the strict liability remedy for present and prospective claimants and where the purposes of punitive damages are otherwise served.” 727 F.2d at 529. This court voted to rehear the case en banc, 727 F.2d at 533, thereby vacating the panel opinion. See Fifth Circuit Local Rule 41.3.
II. DISCUSSION.
At the outset, we reinstate Parts II, V, and VIII of the panel opinion, denominated “Strict Liability in Tort,” “Proximate Causation,” and “Disclosure to Jury of Settlement Amounts,” respectively. The remainder of the panel opinion is superseded in its entirety by this opinion. Because the defendants, in their briefs before the panel, attacked the portion of the judgment awarding compensatory damages primarily by means of challenges to the admissibility of certain evidence, rather than challenges to the substantive law applied, we address first their evidentiary challenges and then turn to their substantive law challenges.
A. Evidentiary Issues.
1. The Sumner Simpson Papers.
Johns-Manville and Raybestos-Manhattan contend that the district court committed reversible error by admitting three of the so-called “Sumner Simpson papers.”2 These papers consist of, among other things, correspondence to and from Sumner Simpson, who occupied a dominant position in Raybestos-Manhattan from 1929 until his death in 1953. The first letter, dated September 25, 1935, was written by A.F. Rossiter of Asbestos magazine to Simpson. In this letter, Rossiter refers to previous requests made by Simpson that nothing be published in that magazine concerning the hazards posed by asbestos dust. In the second letter, dated October 1, 1935, Simpson states to Vandiver Brown, Johns-Manville’s attorney, that “the less said about asbestos, the better off we are.” Simpson in the same letter also refers to English articles on asbestos dust control *1318and comments that Asbestos has “been very decent about not re-printing the English articles.” Finally, in the third letter, dated two days later, Brown replies: “I quite agree with you that our interests are best served by having asbestosis receive the minimum of publicity.” He also suggests that, if they should decide eventually not to object to the publication of such an article, American instead of English data should be used on the theory that the asbestos dust was “considerably milder” in North America.
Under Federal Rule of Evidence 401, evidence meets the threshold test of relevancy3 if the evidence tends “to make the existence of any fact that is of consequence to the determination of the action more probable or less probable than it would be without the evidence.” Fed.R.Evid. 401; see also Carter v. Massey-Ferguson, Inc., 716 F.2d 344, 347 (5th Cir. 1983). Jackson introduced the Sumner Simpson letters into evidence to show, inter alia, that Johns-Manville and Raybestos-Manhattan knew or should have known of the dangers asbestos products posed to shipyard workers during the years Jackson worked in that capacity at Ingalls. Under Restatement (Second) of Torts § 402A comment j,4 a manufacturer is only required to warn of dangers of which he knew or should have known “by the application of reasonable, developed human skill and foresight.” See also Borel v. Fibreboard Paper Products Corp., 493 F.2d 1076, 1089 (5th Cir.1973) (manufacturer is held to knowledge and skill of an expert), cert. denied, 419 U.S. 869, 95 S.Ct. 127, 42 L.Ed.2d 107 (1974).
The defendants argue that the letters are of no probative value as to foreseeability because they refer only to the danger faced by miners and plant workers in being exposed to raw asbestos, and it was clearly established at trial that Jackson worked solely with finished asbestos products. We note as an initial matter that the texts of the letters themselves do not limit their discussion to miners or plant workers. Rather, on their face, the letters appear to pertain to the problems of asbestos dust control in general. Nevertheless, even assuming that the defendants are correct in their contention that the letters refer only to certain groups of workers, we think that such a distinction plainly goes more to the weight than to the admissibility of the evidence. A study indicating that exposure to asbestos fibers is likely to cause harm to one group of workers is at least suggestive of the fact that other groups of workers who are also exposed to asbestos fibers face similar dangers. The letters were not so remote in subject matter as to be devoid of probative value.
Nor do we believe that the letters are irrelevant because they were written twen*1319ty years before Jackson began to work at Ingalls. Jackson alleged at trial that the defendants knew of the dangers posed by asbestos at least between 1953 and 1971, the time during which he handled the asbestos products. Evidence that the defendants had such knowledge in 1935 clearly makes Jackson’s allegation that the dangers of the asbestos products were foreseeable in 1953 more probable than it would have been without such evidence. It remains for the jury to determine whether after-acquired knowledge was sufficient to absolve the defendants of a duty to warn.5
Although relevant, evidence can be excluded under Federal Rule of Evidence 4036 if its probative value is substantially outweighed by the danger of unfair prejudice. A trial court’s determination under rule 403, however, will not be reversed absent a finding of an abuse of discretion. Ballou v. Henri Studios, Inc., 656 F.2d 1147, 1153 (5th Cir.1981); King v. Ford Motor Co., 597 F.2d 436, 445 (5th Cir.1979). We find no abuse of discretion on the part of the district court. Nothing in the letters is of such an inherent nature as to inflame the passions of the jury or invoke its sympathies. Moreover, counsel for Johns-Manville and Raybestos-Manhattan had ample opportunity, of which they took full advantage, to ensure that the jury fully appreciated the remoteness of the letters both in time and in subject matter. The slight danger that the admission of such evidence would have caused sufficient unfair prejudice to warrant exclusion was properly ignored.7 See Gross v. Black & Decker (U.S.), Inc., 695 F.2d 858, 863 (5th Cir. 1983); United States v. Hearod, 499 F.2d 1003, 1005 (5th Cir.1974).8
2. Admission of Cancer Evidence.
At trial, a number of expert witnesses testified that Jackson’s exposure to asbestos significantly increased his risk of contracting cancer. Three of these expert witnesses testified both that exposure to asbestos generally results in some increased risk of cancer and that, based upon Jackson’s medical records and history of asbestos exposure, it could be estimated that Jackson specifically had a greater than fifty percent chance of contracting asbestos-related cancer in the future. On appeal, *1320Johns-Manville and Raybestos-Manhattan assert that admission of this evidence was prejudicial error because the relationship between asbestos and cancer was not relevant to any issue in the case. In addition, they argue that, even if such evidence was relevant, its emotional impact substantially outweighed its probative value. In response, Jackson alleges that the evidence was in fact relevant to and quite probative of the defendants' liability, his mental anguish resulting from his increased risk of cancer, and the availability of prospective damages associated with cancer.
Turning first to the admissibility of cancer evidence to show liability, we find that under rule 401 cancer evidence was relevant with respect to whether the defendants had a duty to warn. In State Stove Manufacturing Co. v. Hodges, 189 So.2d 113 (Miss.1966), cert. denied, 386 U.S. 912, 87 S.Ct. 860, 17 L.Ed.2d 784 (1967), the Mississippi Supreme Court adopted Restatement (Second) of Torts § 402A,9 at least insofar as it subjects manufacturers to strict liability for injuries caused by their products sold in an unreasonably dangerous condition. Comment k to § 402A10 provides that some products inherently unsafe can be prevented from being unreasonably dangerous by furnishing the user with an adequate warning of the hazards of the product. See Borel v. Fibreboard Paper Products Corp., supra, at 1089-90; Alman Bros. Farms & Feed Mill, Inc., v. Diamond Laboratories, Inc., 437 F.2d 1295, 1302-03 (5th Cir.1971); Pridgett v. Jackson Iron & Metal Co., 253 So.2d 837, 843-44 (Miss.1971). Because one of the purposes of the warning is to allow the user to make his own decision whether to expose himself to the risks of harm, Borel, supra, at 1089, a manufacturer fulfills its duty to warn in this context only if it warns of all dangers associated with its products of which it has actual or constructive knowledge. See Pavlides v. Galveston Yacht Basin, Inc., 727 F.2d 330, 338 (5th Cir.1984); Karjala v. Johns-Manville Products Corp., 523 F.2d 155 (8th Cir.1975); Borel, supra, at 1089-90. In establishing the scope of a manufacturer’s duty to warn, therefore, evidence of all known or foreseeable hazards posed by the product is relevant. Thus, in the instant case, evidence that asbestos is a carcinogen was clearly probative of the nature and *1321extent of the defendants’ duty and corresponding breach.11
Although cancer evidence is relevant to the issue of the defendants’ liability, we think that this ground for admission, standing alone, is insufficient under Federal Rule of Evidence 408 to justify the admission of the type and quantity of cancer evidence adduced by the plaintiff here. Jackson introduced no fewer than nine expert witnesses who tied asbestos exposure in some manner to an increased risk of cancer. Three of those experts specifically testified that Jackson in particular had a greater than fifty percent chance of contracting cancer. Johns-Manville and Raybestos-Manhattan argue that the district court abused its discretion in admitting the cancer evidence because the dire symptoms and consequences of the disease are so well known and feared by the general public that extensive evidence on the matter was likely to cause individual members of the jury to act out of unfair prejudice. If the cancer evidence is relevant only to the defendants’ liability, we agree with the defendants that the danger of unfair prejudice outweighed its probative value.
Jackson offers, however, two other grounds for the admissibility of the cancer evidence: (1) to establish damages for reasonable mental anguish resulting from his increased risk of cancer and (2) to establish damages in connection with cancer as a future consequence of the complained of condition that is reasonably probable to occur. We think that either ground would justify the inclusion of the evidence in this case, provided, of course, that the damages of which the cancer evidence would be probative were available to Jackson as a matter of law. Thus, because we have decided to certify to the Mississippi Supreme Court the question whether these types of damages are recoverable by Jackson in the present context, see infra Part B3, the final decision as to the admissibility of the cancer evidence must await that court’s response to our question. If the Mississippi Supreme Court holds that Jackson has no right in the instant case to recover damages either for cancer as a probable future consequence or for mental anguish for the fear of contracting cancer, then the cancer evidence was wrongly admitted and a new trial will be in order. If, however, the Mississippi Supreme Court rules that either category of damages is recoverable, the cancer evidence was properly admitted.12
B. Substantive Law — Punitive Damages, Mental Anguish and Probable Future Consequences.
In the original appeal of this case, Johns-Manville and Raybestos-Manhattan argued that punitive damages should not be recoverable as a matter of law in the context of asbestos litigation because of certain public policy considerations described below. The defendants also insisted that the district court erroneously allowed the jury to award compensatory damages for mental anguish allegedly associated with Jackson’s increased risk of contracting cancer.13 Fi*1322nally, before the en banc court the defendants argued that the district court was also erroneous in allowing the jury to award compensatory damages for cancer as a probable future consequence of Jackson’s present condition. Because a plaintiff under Mississippi law can usually recover both types of compensatory damages if they are sufficiently tied to the defendants’ wrong, see Entex, Inc. v. Rasberry, 355 So.2d 1102, 1103 (Miss.1978) (“where ... future consequences from an injury will ensue, recovery therefor may be had, but such future consequences must be established in terms' of reasonable probabilities”); Sears, Roebuck & Co. v. Devers, 405 So.2d 898, 901 (Miss.1981) (damages for mental anguish are recoverable when they are the natural and proximate result of a wrong), whether these damages are available in the instant case may depend on the nature of the actionable injury. If the actionable injury here was the exposure to asbestos, as Jackson insists, he may be entitled to recover damages for those future consequences, such as the manifestation of cancer, that could be established in terms of reasonable probabilities and for the mental suffering that is the direct consequence of the increased risk of cancer caused by the asbestos exposure. If, on the other hand, exposure to asbestos is regarded as too abstract an invasion, either as a general rule or in the context of latent disease, mass tort litigation, and instead Jackson’s asbestosis itself is considered to be the only actionable harm, Jackson may have no right to recover these damages since asbestosis alone does not result in an increased risk of cancer. In voting to rehear the case en banc, this court requested the parties additionally to consider in their briefings whether this case was an appropriate one for the fashioning and imposition of federal common law.14 Upon careful review of the excellent briefs submitted and the applicable caselaw, we now conclude that Mississippi law governs the resolution of the punitive damages, cancer as a probable future consequence, and mental anguish issues. Moreover, because Mississippi courts have yet to give a definite answer to the questions these issues pose, we have determined to certify all three issues to the Mississippi Supreme Court.
*13231. The Unique Nature of Asbestos Litigation.
In advocating the application of federal common law, both the defendants and the dissent distinguish the instant case from routine personal injury actions on the ground that asbestos-related injuries have become a national problem of immense proportions. Studies cited in the panel opinion15 indicate that in the last forty years over 21 million Americans have been significantly exposed to asbestos. These studies further estimate that at least 200,000 people will die from asbestos-related cancer alone by the end of the century. As a result of the widespread exposure to asbestos, over 20,000 personal injury lawsuits have already been filed, seeking billions of dollars in damages. Johns-Manville reports that it alone is named as a defendant in over 14,000 suits, almost 10,000 of which seek substantial punitive damages in addition to compensatory relief.
It is feared that, unless present plaintiffs are soon limited in the damages they can collect, early recoveries will create a substantial possibility that the responsible corporate entities will be unable to satisfy the compensatory awards of future claimants. Defendants, the dissent, and a number of commentators 16 urge that, specifically, assessments of punitive damages not only threaten to destroy the viability of enterprises through which loss distribution can be accomplished, but also are incapable of fulfilling their dual functions of punishment and deterrence in the face of the asbestos industry’s virtual limitless liability. Similarly, awards for mental and prospective damages related to possible future manifestations of a disease, theoretically recoverable when exposure is considered as the actionable injury, require asbestos companies to expend their resources at a more accelerated pace to the detriment of future plaintiffs. To the defendants and the dissent, these problems and the need for national solutions form an ample basis for the formulation of federal common law.
2.f*The Question of Federal Common Law.
Any discussion of federal common law must begin with Erie R. Co. v. Tompkins, 304 U.S. 64, 58 S.Ct. 817, 82 L.Ed. 1188 (1938). In Erie, the Supreme Court established that federal courts do not have the general law-making powers commonly exercised by state courts. The Erie Court held that federal courts, as courts of limited jurisdiction, are empowered to make only those laws authorized by the Constitution or by enactments of Congress. 304 U.S. at 78, 58 S.Ct. at 822. Nevertheless, since Erie, the Supreme Court has recognized “a responsibility in the absence of legislation, to fashion federal common law in cases raising issues of uniquely federal concern.” Northwest Airlines, Inc. v. Transport Workers Union of America, 451 U.S. 77, 95, 101 S.Ct. 1571, 67 L.Ed.2d 750 (1981). These instances, however, are “few and restricted.” Wheeldin v. Wheeler, 373 U.S. 647, 651, 83 S.Ct. 1441, 1444, 10 L.Ed.2d 605 (1963). With respect to the kinds of cases that do raise issues of “uniquely federal concern,” the Supreme Court has most recently stated:
[Ajbsent some congressional authorization to formulate substantive rules of decision, federal common law exists only in such narrow areas as those concerned with the rights and obligations of the United States, interstate and international disputes implicating the conflicting rights of States or our relations with foreign nations, and admiralty eases. In these instances, our federal system does *1324not permit the controversy to be resolved under state law, either because the authority and duties of the United States as sovereign are intimately involved or because the interstate or international nature of the controversy makes it inappropriate for state law to control.
Texas Industries, Inc. v. Radcliff Materials, Inc., 451 U.S. 630, 641, 101 S.Ct. 2061, 2067, 68 L.Ed.2d 500 (1981).
Johns-Manville and Raybestos-Manhattan, while conceding that Congress has yet to take any action to remedy the problems of asbestos exposure, present what can be taken as two arguments for the proposition that these problems involve uniquely federal concerns justifying the displacement of state law. First, the defendants, echoed by the dissent, argue that the potential conflict among plaintiffs for the limited resources of the asbestos companies is analogous to the interstate conflicts over water rights and pollution that have been held to involve uniquely federal interests. According to the defendants, just as one state cannot divert the waters of a river flowing partially within its borders without regard for those downstream, one group of states should not be able by allowing the recovery of noncompensatory damages to divert and deplete scarce corporate resources at the expense of injured plaintiffs in other states.
We find this argument, although superficially plausible, to be ultimately unpersuasive. Defendants in drawing their analogy necessarily rely on such cases as Hinderlider v. La Plata River & Cherry Creek Ditch Co., 304 U.S. 92, 58 S.Ct. 803, 82 L.Ed. 1202 (1938), and Illinois v. City of Milwaukee, 406 U.S. 91, 92 S.Ct. 1385, 31 L.Ed.2d 712 (1972). Hinderlider concerned the allocation of water rights between Colorado and New Mexico in regard to the La Plata River, which flowed from Colorado to New Mexico and was used benefically by both states. The Supreme Court, in requiring the river to be equally apportioned, held that “whether the water of an interstate stream must be apportioned between the two States is a question of ‘federal common law’ upon which neither the statutes nor the decisions of either State can be conclusive.” 304 U.S. at 110. Similarly, in Illinois v. City of Milwaukee, the Supreme Court, faced with a dispute over water pollution in Lake Michigan, a body of water bounded by four states, found that the conflict was fundamentally interstate in nature and thus touched basic interests in federalism. The Court held that, in such a situation, federal common law applied. 406 U.S. at 105 & n. 6, 92 S.Ct. at 1393 & n. 6.
In both cases, the essential conflict was between states as quasi-sovereign bodies over shared resources. Under such circumstances, a single state’s statutes or decisions could not be considered conclusive. In the realm of asbestos litigation, on the other hand, any conflict between plaintiffs, even assuming one to exist, may transcend state lines but does not involve the rights and duties of states as discrete political entities. A conflict over the resources of the asbestos industry would be not merely between plaintiffs in different states but between plaintiffs in the same state and between past, present, and future plaintiffs. Clearly, if federal courts are to remain courts of limited powers as required under Erie, a dispute over a common fund or scarce resources cannot become “interstate,” in the sense of requiring the application of federal common law, merely because the conflict is not confined within the boundaries of a single state.
Second, the defendants argue that there is a uniquely federal interest in assuring compensation to injured persons and in maintaining government asbestos suppliers. Both interests, the defendants insist, would be substantially served by the creation of federal rules restricting the types of damages recoverable in asbestos suits. We think the defendants in making this argument misconceive the nature of the uniquely federal interest requirement. “Uniquely federal interests” are not merely national interests, and the existence of national interests, no matter their significance, cannot by themselves give federal courts the authority to supersede state poli*1325cy. Indeed, as the Supreme Court recently stated, “[t]he enactment of a federal rule in an area of national concern, and the decision whether to displace state law in doing so, is generally made not by the federal judiciary, purposefully insulated from democratic pressures, but by the people through their elected representatives in Congress.” City of Milwaukee v. Illinois, 451 U.S. 304, 312-13, 101 S.Ct. 1784, 1789-90, 68 L.Ed.2d 114 (1981) (Milwaukee II). It is well-established instead that to be “uniquely federal” and thus a sufficient predicate for the imposition of a federal substantive rule, an interest must relate to an articulated congressional policy or directly implicate the authority and duties of the United States as sovereign. See, e.g., Texas Industries, supra, at 641, 101 S.Ct. at 2067 (authority and duties of United States must be “intimately involved”); Northwest Airlines, supra, at 95, 101 S.Ct. at 1582 (uniquely federal concern is “the definition of rights and duties of the United States”); United States v. Kimbell Foods, Inc., 440 U.S. 715, 726, 99 S.Ct. 1448, 1457, 59 L.Ed.2d 711 (1979) (federal law governs rights of United States arising under nationwide federal program); Clearfield Trust Co. v. United States, 318 U.S. 363, 366, 63 S.Ct. 573, 574, 87 L.Ed. 838 (1943) (federal common law governs rights and duties of United States on commercial paper which it issues).
Although individual members and committees of Congress have expressed concern with the problem of asbestos litigation,17 Congress itself has yet to make policy on this issue. Moreover, defendants have been unable to point to any substantial right or duty of the federal government that would be directly affected by the outcome of this litigation. Any effect state law recoveries would eventually have on the government’s ability to obtain needed materials is far too indirect to justify the imposition of federal common law. See, e.g., In re “Agent Orange” Product Liability Litigation, 635 F.2d 987, 993 (2d Cir.1980) (no federal policy at stake in action by war veterans against manufacturers of defoliants used in Vietnam War that is sufficient to warrant creation of federal common law), cert. denied, 454 U.S. 1128, 102 S.Ct. 980, 71 L.Ed.2d 116 (1981); cf. Miree v. DeKalb County, 433 U.S. 25, 29-32, 97 S.Ct. 2490, 2493-97, 53 L.Ed.2d 557 (1977) (federal interest in air travel insufficient basis for creation of federal law in action between private parties that will have no direct effect on United States or its treasury); Bank of American National Trust & Savings Ass’n v. Parnell, 352 U.S. 29, 33-34, 77 S.Ct. 119, 121, 1 L.Ed.2d 93 (1956) (interest of government too speculative and remote in action between private parties that does not touch rights and duties of the United States). Similarly, ensuring the availability of compensation for injured plaintiffs is predominately a matter of state concern and, in the absence of congressional enactments, state law, both as to the extent of compensation available and punitive damages, must apply. As recently as last term, the Supreme Court reaffirmed this basic principle of American federalism when it stated in a related context: “Punitive damages have long been a part of traditional principles of state law. As noted above, Congress assumed that traditional principles of state tort law would apply with full force unless they were expressly supplanted.” Silkwood v. Kerr-McGee Corp., - U.S.-, 104 S.Ct. 615, 625, 78 L.Ed.2d 443 (1984).
A related interest that has been suggested to justify the exercise of federal judicial power in this case is the federal court’s own interest in “doing justice.” It could be *1326argued that federal courts have an institutional interest in maintaining a federal judicial system that is fundamentally “just.” While we are sympathetic to such an argument, it is clear that such an abstract, all-encompassing interest cannot form a sufficient basis upon which to rest the displacement of state law. First, we find implicit in Erie the idea that in diversity actions federal court concerns in a just judicial system cannot be used as a reason for supplanting substantive state policies. Second, certainly as a practical matter, the effect of resting assertions of federal judicial power on so vague an interest as “justice” would be to eviscerate Erie completely and thus ignore its constitutional underpinnings. Third, the Supreme Court itself has already rejected a similar interest in Guaranty Trust Co. v. York, 326 U.S. 99, 65 S.Ct. 1464, 89 L.Ed. 2079 (1945). In that diversity case, the plaintiff argued, inter alia, that the federal court’s equitable powers and discretion constituted an exception to Erie and that, therefore, the federal court was not bound by the state statute of limitations. The Supreme Court, in rejecting the plaintiff’s claim, stated:
But since a federal court adjudicating a state-created right solely because of the diversity of citizenship of the parties is for that purpose, in effect, only another court of the State, it cannot afford recovery if the right to recover is made unavailable by the State nor can it substantially affect the enforcement of the right as given by the State.
Id. at 108-09, 65 S.Ct. at 1469. A federal court’s interest in “doing equity" is closely related to its interest in “doing justice.” It is doubtful that the Supreme Court in Guaranty Trust would have been any more willing to displace state law if the plaintiff additionally had successfully shown that the applicable state statute of limitations was “unjust.” Obviously, if justice could be used as a justification for the naked exercise of federal judicial power, the Supreme Court’s oft-repeated assertion that the instances in which federal common law governs are “few and restricted” would no longer be true. Cf. Texas Industries, Inc., supra, at 640, 101 S.Ct. at 2066 (denying rights of contribution against antitrust co-conspirators).
Finally, we note the impracticalities of fashioning a federal eommon law in the context of asbestos litigation. First, any decision by this court to displace state law would be effective only within our geographical jurisdiction. While it is of course possible that other circuits would in time follow our lead, at least one circuit has already expressly refused to apply federal common law in these circumstances. See Moran, supra, at 817 (“relief sought ... may be more properly granted by the state or federal legislature than by this Court”). Unless and until the Supreme Court imposes a similar federal common law on the country as a whole, any federal substantive rules fashioned by us would only exacerbate the alleged inequities among claimants, with punitive and certain types of compensatory damages being available outside the circuit but not within. Such a result, in turn, would encourage a massive effort at forum shopping to bring suits outside this circuit.
Second, we are unable to discern any governing principle of easy application for the imposition of federal common law in the asbestos context. Although the amount of recovery available to plaintiffs depends in large part on the availability of punitive damages and the scope of the actionable injury, many other aspects of the litigation similarly play a significant role in determining the size of potential awards. The applicable limitations period for the bringing of an action, for example, has a direct impact on aggregate recovery and thus the availability of funds for future claimants. The simple fact is that, once the need to limit plaintiffs’ recoveries is used to justify the creation of federal substantive rules precluding the recovery of punitive damages and narrowing the scope of the actionable injury, there would be no principled means of restricting the application of federal common law to other matters, either in the context of asbestos litigation or in relation to similar legal problems. *1327As a consequence, federal courts would become increasingly responsible for establishing a general federal tort law in a manner we think is inconsistent with the teachings of Erie and the logic behind our federal system. Cf. Parratt v. Taylor, 451 U.S. 527, 544, 101 S.Ct. 1908, 1917, 68 L.Ed.2d 420 (1981) (due process clause not intended to be “a font of tort law to be superimposed upon whatever systems may already be administered by the States”) (quoting Paul v. Davis, 424 U.S. 693, 701, 96 S.Ct. 1155, 1160, 47 L.Ed.2d 405 (1976)).
Third, displacement of state law in asbestos cases would require federal courts to reexamine the major issues and principles involved in asbestos litigation, most of which are presently settled under state tort law. As a result, the progress of currently pending asbestos cases through the federal court system would come to a virtual standstill. The need to ensure quick resolution of the claims militates strongly against taking such action.
In sum, we find that this case is not an appropriate one for the creation of a federal common law because of the absence of a uniquely federal interest and the practical problems that would attend the displacement of state law. Although federal common law may at times be a “necessary expedient,” Milwaukee II, supra, at 314, 101 S.Ct. at 1791 (quoting Committee for Consideration of Jones Falls Sewage System v. Train, 539 F.2d 1006, 1008 (4th Cir.1976) (en banc)), under our federal systern Congress is generally the body responsible for balancing competing interests and setting national policy. There is no doubt that a desperate need exists for federal legislation in the field of asbestos litigation. Congress’ silence on the matter, however, hardly authorizes the federal judiciary to assume for itself the responsibility for formulating what essentially are legislative solutions. Displacement of state law is primarily a decision for Congress, and Congress has yet to act. See Miree, supra, at 32, 97 S.Ct. at 2495.18
3. Certification.
It remains for us to consider under Mississippi law the nature of the actionable injury and the availability of punitive damages in the asbestos context. Upon review of the relevant caselaw and the briefs of counsel, we find that these issues are currently unresolved under Mississippi jurisprudence and are appropriate for certification to the Mississippi Supreme Court pursuant to Mississippi Supreme Court Rule 46.19
As noted above, resolution of whether the district court erred in allowing Jackson to recover damages associated with the manifestation of cancer as a probable future consequence or for mental anguish resulting from his increased risk of cancer may depend under current Mississippi doctrine upon the nature of the actionable injury. This is so because asbestosis itself *1328does not lead to an increased risk of cancer and under Mississippi law plaintiffs can only recover for mental suffering or probable future consequences that at the very least are the direct result of the actionable wrong. See, e.g., Sears, Roebuck & Co., supra, at 901. Mississippi courts, however, have yet to consider how abstractly to characterize the wrong involved in the latent disease and mass tort context, and we are reluctant to undertake the careful weighing of competing state policies that such a determination would entail. On the one hand, characterizing the injury as being the initial exposure might provide the plaintiff the traditional right under Mississippi law to recover in a single action present damages, damages for mental anguish, and those future damages resulting from defendants’ wrongful act that can be established in terms of reasonable probabilities. See, e.g., Entex, Inc., supra, at 1104. Substantial awards for mental anguish or for prospective damages, on the other hand, might jeopardize, especially with respect to mass torts, the viability of the enterprises that are to accomplish the strict liability goal of loss distribution.20 Because of the potential complexity of the policy analysis required here, certification is needed to reach a principled rather than a conjectural result. See State of Fla. ex rel. Shevin v. Exxon Corp., 526 F.2d 266, 275 (5th Cir.), cert. denied, 425 U.S. 930, 96 S.Ct. 1659, 48 L.Ed.2d 172 (1976); see also, Brown, Certification — Federalism in Action, 7 Cumberland L.Rev. 455 (1977).21
In regard to the availability of punitive damages, a similar problem exists. Although punitive damages are generally available if the defendants have engaged in “wanton, gross or intentional conduct in the nature of an independent tort,” State Farm Mutual Automobile Co. v. Roberts, 379 So.2d 321, 322 (Miss.1980), a plaintiff has no absolute right under Mississippi law to punitive damages. Mississippi courts are clearly able to consider policy in determining in a given case whether punitive damages are appropriate at all or whether a particular award is excessive. See T.C.L., Inc. v. Lacoste, 431 So.2d 918 (Miss. 1983); Tideway Oil Programs, Inc. v. Serio, 431 So.2d 454, 460 n. 1 (Miss.1983). *1329We have found no case in which the Mississippi Supreme Court has considered the availability of punitive damages in a mass tort context such as the one presented here. Thus, in light of the growing controversy that has in recent years surrounded the availability of punitive damages in such contexts,22 we think it is in the interests of the best administration of justice to allow the Mississippi Supreme Court the opportunity to weigh the competing interests at stake and to declare authoritatively Mississippi policy on this issue. See Barnes v. Atlantic & Pacific Life Insurance Co., 514 F.2d 704, 706 (5th Cir.1975) (“When the state law is in doubt especially on the underlying public policy aims, it is in the best administration of justice to afford the litigants a consistent final judicial resolution by utilizing the certification procedure.”).
Although we have determined to certify these issues, we first, as is our usual practice, request the parties to submit a joint statement of facts and stipulated questions to be certified to the Mississippi Supreme Court. Following receipt of a response, we will transmit the formal certificate as well as the record in the case and copies of the parties’ briefs, including any briefs submitted in response to our inquiry herein.
CERTIFIED.
. In Part II of this opinion, only Johns-Manville and Raybestos-Manhattan will be referred to as "defendants.”
. These letters are set out in full in the appendix to the panel opinion. See 727 F.2d at 532-33.
. Federal Rule of Evidence 402 provides:
All relevant evidence is admissible, except as otherwise provided by the Constitution of the United States, by Act of Congress, by these rules, or by other rules prescribed by the Supreme Court pursuant to statutory authority. Evidence which is not relevant is not admissible.
Fed.R.Evid. 402.
. Restatement (Second) of Torts § 402A comment j reads in pertinent part:
/. Directions or warning. In order to prevent the product from being unreasonably dangerous, the seller may be required to give directions or warning, on the container, as to its use. The seller may reasonably assume that those with common allergies, as for example to eggs or strawberries, will be aware of them, and he is not required to warn against them. Where, however, the product contains an ingredient to which a substantial number of the population are allergic, and the ingredient is one whose danger is not generally known, or if known is one which the consumer would reasonably not expect to find in the product, the seller is required to give warning against it, if he has knowledge, or by the application of reasonable, developed human skill and foresight should have knowledge, of the presence of the ingredient and the danger. Likewise in the case of poisonous drugs, or' those unduly dangerous for other reasons, warning as to use may be required.
******
Where warning is given, the seller may reasonably assume that it will be read and heeded; and a product bearing such a warning, which is safe for use if it is followed, is not in defective condition, nor is it unreasonably dangerous.
. The panel opinion relies on the famous Fleischer-Drinker Report of 1946, Fleischer, Viler, Gade & Drinker, A Health Survey of Pipe Covering Operations in Constructing Naval Vessels, 28 J.Indus. Hygiene & Toxicology 9 (1946), as an example of the research developments that occurred between 1935 and 1953. Other evidence presented at trial, however, supports Jackson’s claim that his injuries remained foreseeable in the 1940’s and 1950’s. See, e.g., Testimony of Dr. Gerrit Schepers, Record, Vol. 49, at 437-76. See generally Special Project, An Analysis of the Legal, Social, and Political Issues Raised by Asbestos Litigation, 36 Vand.L.Rev. 573, 596-605 (1983) (evidence available to prove foreseeability against asbestos manufacturers). We are unable to say that as a matter of law the knowledge acquired after 1935 excused the defendants from performing any duty they might have had to place warnings on their asbestos products. See Moran v. Johns-Manville Sales Corp., 691 F.2d 811, 814-15 (6th Cir.1982) (evidence introduced at trial of known or knowable risks to insulation workers was ample).
. Federal Rule of Evidence 403 provides:
Although relevant, evidence may be excluded if its probative value is substantially outweighed by the danger of unfair prejudice, confusion of the issues, or misleading the jury, or by considerations of undue delay, waste of time, or needless presentation of cumulative evidence.
Fed.R.Evid. 403.
. We reject out of hand defendants' contention that the fact that H.K. Porter was found not to be liable proves "beyond rational debate” the undue prejudicial nature of the Sumner Simpson papers. As the panel noted, " ‘[w]hether the jury’s verdict was the result of carelessness or compromise or a belief that the responsible individual should suffer the penalty ... is immaterial. Juries may indulge in precisely such motives or vagaries.’ ” 727 F.2d at 524 (quoting Borel, supra, at 1094; original from United States v. Dotterweich, 320 U.S. 277, 279, 64 S.Ct. 134, 88 L.Ed. 48 (1943)).
. Johns-Manville also alleges that the district court committed reversible error by admitting numerous other pieces of evidence that were of such a nature as to create a substantial danger of unfair prejudice. These items all were introduced to show that Johns-Manville had knowledge of asbestos’ dangers decades before Jackson began working for Ingalls. For essentially the same reasons as those stated above, we find no abuse of discretion.
. Restatement (Second) of Torts § 402A provides:
§ 402A. Special Liability of Seller of Product for Physical Harm to User or Consumer
(1) One who sells any product in a defective condition unreasonably dangerous to the user or consumer or to his property is subject to liability for physical harm thereby caused to the ultimate user or consumer, or to his property, if
(a) the seller is engaged in the business of selling such a product, and
(b) it is expected to and does reach the user or consumer without substantial change in the condition in which it is sold.
(2) The rule stated in Subsection (1) applies although
(a) the seller has exercised all possible care in the preparation and sale of his product, and
(b) the user or consumer has not bought the product from or entered into any contractual relation with the seller.
. Restatement (Second) of Torts § 402A comment k provides in part:
k. Unavoidably unsafe products. There are some products which, in the present state of human knowledge, are quite incapable of being made safe for their intended and ordinary use. These are especially common in the field of drugs. An outstanding example is the vaccine for the Pasteur treatment of rabies, which not uncommonly leads to very serious and damaging consequences when it is injected. Since the disease itself invariably leads to a dreadful death, both the marketing and the use of the vaccine are fully justified, notwithstanding the unavoidable high degree of risk which they involve. Such a product, properly prepared, and accompanied by proper directions and warning, is not defective, nor is it unreasonably dangerous____ The seller of such products, again with the qualification that they are properly prepared and marketed, and proper warning is given, where the situation calls for it, is not to be held to strict liability for unfortunate consequences attending their use, merely because he has undertaken to supply the public with an apparently useful and desirable product, attended with a known but apparently reasonable risk.
. For evidence introduced at trial concerning the foreseeability of an increased risk of cancer following exposure to asbestos, see Testimony of Dr. Gerrit Schepers, Record, Vol. 49, at 410-12; Testimony of Dr. David Ozonoff, Vol. 51, at 105; Testimony of Mr. Hugh Jackson, Vol. 53, at 1624-25.
. We recognize that, if the Mississippi Supreme Court rules that damages for mental anguish are recoverable in this context, but that damages for cancer as a probable future consequence are not, then it could be claimed that the type and quantity of cancer evidence in this case continues to pose too great a risk of unfair prejudice. This distinction between these grounds for admissibility of the cancer evidence would require a different balancing analysis under rule 403. Because the defendants took an all-or-nothing position at trial with respect to the cancer evidence and have maintained this position on appeal, we do not address this issue. Clearly, if the evidence was admissible as to one kind of damages, but not as to the other, a limiting instruction would have been in order upon request. No request for such an instruction was made in this case.
. The district court never specifically instructed the jury that Jackson could recover such damages. Instead, the district court stated that the following were recoverable:
If you find from a preponderance of the evidence in this case that the plaintiff, James L. Jackson, is entitled to a verdict, against any one or more of the defendants herein, then in *1322that event it would be your sworn duty to fix the amount of your verdict at a sum which will fairly and reasonably compensate him for his injuries, sufferings or conditions of pulmonary disease proved by a preponderance of the evidence to have been sustained as a proximate result of exposure to asbestos fibers emitted from the product or products of a defendant or defendants herein. In calculating the amount of the plaintiff's damages, if any, and these are called either actual or compensatory damages, it would be your sworn duty to take into consideration the following elements:
1. The amount of wages, if any, lost to date by the plaintiff.
2. Any impairment of Mr. Jackson’s future wage-earning capacity.
3. The reasonable value of the medical bills and expenses including doctor’s fees, hospital services, and medication required to date, for the necessary treatment of his injuries complained of.
4. The reasonable and necessary expenses to Mr. Jackson for doctor, hospital and medication charges which you find from the evidence in this case are reasonably expected to be required in the future for the necessary treatment of his complained of condition.
5. All physical pain and mental anguish suffered by him to date and such as he is reasonably certain to suffer in the future as a direct result of his complained of condition.
In this regard also, you may consider any aggravation of an existing disease or physical defect or activation of any such latent condition, resulting from the injury.
Record, Vol. 56, at 2444. These instructions are sufficiently broad to have allowed the jury, on this record, to award damages for Jackson's asbestosis and mental anguish and for cancer as a probable future consequence of his exposure to asbestos.
. Our request read in pertinent part as follows: Please refer to the discussion in Part VI of the panel opinion, which appears subsequent to headnote [23] (727 F.2d 526-530). Supplement or include in your briefing in this case a discussion of what consideration Erie R.R. Co. v. Tompkins, 304 U.S. 64, 58 S.Ct. 817, 82 L.Ed. 1188, Clearfield Trust Co. v. United States, 318 U.S. 363, 63 S.Ct. 573, 87 L.Ed. 838, and subsequent interpretative decisions would permit this court to give to the impact' of punitive damage awards on future federal court litigants notwithstanding Mississippi rules of substantive law.
. See 727 F.2d at 524. Studies cited include Selikoff, Report to the U.S. Department of Labor, Disability Compensation for Asbestos-Associated Disease in the United States (1982), reported in Seltzer, Punitive Damages in Mass Tort Litigation: Addressing the Problems of Fairness, Efficiency and Control, 52 Fordham L.Rev. 37, 37 n. 1 (1983); Congress Grapples with Toxic Torts, Nat'l L.J., Jan. 31, 1983, at 30, col. 1, reported in Seltzer, supra. See also In re Johns-Manville Corp., 36 B.R. 743, 746 (Bankr.S.D.N.Y. 1984) (projection of Johns-Manville’s potential liability); Special Project, supra note 9, at 580-81.
. See infra note 22.
. Various proposals have been presented to the Congress concerning the widespread problems arising from the massive exposure to asbestos. See Product Liability Act, S. 44, 98th Cong., 1st Sess. (1983); Occupational Disease Compensation Act of 1983, H.R. 3175, 98th Cong., 1st Sess. (1983); Asbestos Workers Recovery Act of 1984, S. 2708, 98th Cong., 2d Sess. (1984). To date, though, none of these has been enacted into law. Congress has recently, however, amended the Longshoremen's and Harbor Workers’ Compensation Act with respect to claims related to occupational diseases, including those resulting from the exposure to asbestos. See Longshore and Harbor Workers’ Compensation Act of 1984, Pub.L. No. 98-426, 98 Stat. 1639.
. Because we find that the imposition of federal common law is clearly not appropriate in this context, we have determined not to certify the question to the United States Supreme Court pursuant to 28 U.S.C. § 1254(3), as suggested by the dissent. See Wisniewski v. United States, 353 U.S. 901, 902, 77 S.Ct. 633, 634, 1 L.Ed.2d 658 (1957) (per curiam) (certification only proper in rare instance when advisable in the proper administration and expedition of judicial business); United States v. Perrin, 131 U.S. 55, 58, 9 S.Ct. 681, 682, 33 L.Ed. 88 (1889) (question certified must pose "a real question of a difficult point of law”). See generally 17 C. Wright, A. Miller & E. Cooper, Federal Practice and Procedure § 4038.
. Mississippi Supreme Court Rule 46 provides:
When it appears to the Supreme Court of the United States, or to any circuit court of appeals of the United States, that there are involved in any proceedings before it questions or propositions of law of this state which are determinative of said cause independently of any other questions involved in said case and that there are no clear controlling precedents in the decisions of the Supreme Court of this State, such federal court before rendering a decision may certify such questions or propositions of law of this state to the Supreme Court of Mississippi.
Government Employees Ins. Co. v. Brown, 446 So.2d 1002, 1002 n. 1 (Miss.1984).
Texas law which governed our decision in Hansen v. Johns-Manville Prod. Corp., 734 F.2d 1036 (5th Cir.1984), provided no procedure to certify a question to that state’s highest court.
. Contrary to the defendants’ contention and the panel opinion, Mississippi statute of limitations cases describing under what circumstances specific limitations periods begin to run do not necessarily provide a ready answer to this problem. In a statute of limitations case, a court must balance the plaintiff's need to obtain at least adequate compensation with the defendant’s need to be secure against stale claims and to plan for the future without the uncertainty of potential liability. Wilson v. Johns-Manville Sales Corp., 684 F.2d 111, 119 (D.C.Cir.1982). The plaintiff in the statute of limitations context desires his action to be construed as accruing at the manifestation of the disease. Here, however, the parties clearly have different respective interests. Jackson, for instance, is arguing that the actionable harm was the asbestos exposure, not the manifestation of the disease. As the District of Columbia Circuit Court of Appeals observed in Wilson, supra, at 118 & n. 36, there is no reason to think that the dimensions of a claim are inevitably identical for all purposes. Statutes of limitations, as well as definitions of actionable injuries, " ‘find their justification in necessity and convenience rather than in logic. They represent expedients, rather than principles.’’’ Id. at 118 (quoting Chase Securities Corp. v. Donaldson, 325 U.S. 304, 314, 65 S.Ct. 1137, 1142, 89 L.Ed. 1628 (1945)).
. While we think that under current law the availability of mental anguish damages and damages for cancer as a probable future consequence depends upon a common issue of law, we certify both questions to the Mississippi Supreme Court. We fully recognize the possibility that the Mississippi Supreme Court may determine that, regardless of the nature of the actionable injury, in the mass tort context one type of damages should be recoverable but not the other. We further note that the Supreme Court of Mississippi, of course, will not be bound in any way by the perimeters of the certified questions. We have often stated:
[T]he particular phrasing used in the certified question is not to restrict the Supreme Court’s consideration of the problems involved and the issues as the Supreme Court perceives them to be in its analysis of the record certified in this case. This latitude extends to the Supreme Court's restatement of the issue or issues and the manner in which the answers are to be given, whether as a comprehensive whole or in subordinate or even contingent parts.
Martinez v. Rodriguez, 394 F.2d 156, 159 n. 6 (5th Cir.1968).
. See, e.g., Owen, Punitive Damages in Products Liability Litigation, 74 Mich.L.Rev. 1257 (1976); Seltzer, supra note 15; Comment, Mass Liability and Punitive Damages Overkill, 30 Hastings L.J. 1797 (1979); Comment, Punitive Damages, the Common Question Class Action, and the Concept of Overkill, 13 Pac.L.J. 1273 (1982); Szuch & Shelly, Time to Eliminate Punitive Damages, Nat’l L.J., Feb. 28, 1983, at 13, col. 1. See also Roginsky v. Richardson Merrell, Inc., 378 F.2d 832, 838-41 (2d Cir.1967) (describing problems with awarding punitive damages in mass tort context).