OPINION OF THE COURT
STAPLETON, Circuit Judge:We are here asked to decide whether a victim of a privately executed wiretap1 can successfully move to quash a subpoena duces tecum directing the perpetrator of the wiretap to convey recordings of unlawfully intercepted communications to a grand jury. The district court denied the motions to quash. Since disclosure of the unlawfully intercepted communications to the grand jury would violate an explicit congressional prohibition, and enforcement of the subpoena would involve the courts in a violation of the victims’ statutory privacy rights, we will reverse the district court and remand with orders that the subpoena duces tecum be quashed.
I. Background
A. Factual and Procedural History
Because this case relates to an ongoing grand jury proceeding, we will not refer to the parties by their proper names. We will also limit our recitation of the facts to the minimum necessary to explain and resolve the issues presented. Fortunately, the relevant facts are undisputed.
Appellant-intervenor John Doe 1 is the target of a federal grand jury investigation (hereinafter “Doe 1” or “the target”). Doe 1 lived for some time with his brother, John Doe 2 (“Doe 2” or “the husband”), and his brother’s wife, John Doe 3 (“Doe 3” or “the witness”). For reasons that we need not detail, the witness installed devices on her home telephones that intercepted and recorded telephone conversations initiated from and coming into the home. Both the target and the husband were parties to some of these conversations. Neither the target nor the husband knew that their conversations were being intercepted and recorded, so neither therefore consented to the interception and recording.
*1069Several weeks after the last conversation was recorded, appellee, the United States (“the government”), learned through an informant that the witness possessed tapes containing recordings of conversations involving the target and the husband. The grand jury issued two subpoenas directed to the witness: a subpoena ad testificandum, requiring her to appear and answer questions before the grand jury, and a subpoena duces tecum, requiring her to produce the tapes so they may be played for the grand jury. Only the subpoena duces tecum is involved in this appeal.2
The target and the husband filed motions to intervene and motions to quash the subpoena duces tecum directed to the witness. Their motions contend that the target and husband are “aggrieved persons” within the meaning of § 2510(11) of Title III of the Omnibus Crime Control and Safe Streets Act of 1968 (hereinafter “Title III” or “the Act”), 18 U.S.C. §§ 2510-2522, because they were parties to telephone communications unlawfully intercepted without their knowledge or consent. Citing § 2515 of Title III, the target and husband argue that the contents of the tapes cannot be disclosed to the grand jury because such disclosure would be a violation of § 2511(l)(c).
Although the witness appeared before the grand jury and answered some of the government’s questions, she refused to produce the tapes. The government therefore moved to compel the witness’ full compliance with both subpoenas. The district court granted the government’s motion and, after further resistance from the witness, entered an order holding the witness in contempt. The district court also granted the target and husband’s motions to intervene but denied their motions to quash.3 While acknowledging that Doe 3’s wiretap violated Title III, the court agreed with the government that the evidentiary prohibition of § 2515 contains a “clean hands” exception permitting the submission of evidence of unlawfully intercepted communications to a grand jury where the violation was committed by a private party acting independent of the government. The target and the husband then filed this appeal.4
B. Statutory Structure of Title III
“Title Ill’s complex provisions regulate both interception and disclosure of communications in great detail.” United States v. Cianfrani, 573 F.2d 835, 855 (3d Cir.1978). Various provisions of the Act are directly relevant to the jurisdictional and merits issues presented in this appeal. Before proceeding to those issues, it will be useful to describe the statutory structure of Title III and to set out the provisions that are most important to this case.5
Section 2511(l)(a) makes it a crime for any person to intentionally intercept or endeavor to intercept any wire, oral, or electronic communication. 18 U.S.C. § 2511(l)(a); see also id. § 2510 (definitions). Section 2511(l)(c) makes any disclosure of unlawfully intercepted communications a further violation of the statute. It provides for criminal punishment *1070of any person who “intentionally discloses, or endeavors to disclose, to any other person the contents of any wire, oral, or electronic communication, knowing or having reason to know that the information was obtained through the interception of a wire, oral, or electronic communication in violation of this subsection.” Id. § 2511(l)(c). In addition to criminal sanctions against those who unlawfully intercept communications, the statute also provides a civil remedy. Under § 2520, “any person whose wire, oral, or electronic communication is intercepted, disclosed, or intentionally used in violation of this chapter may in a civil action recover from the person or entity which engaged in that violation such relief as may be appropriate.” Id. § 2520(a).
As a third remedy for violations of § 2511, “Title III contains a strict exclusionary rule,” Cianfrani, 573 F.2d at 855, prohibiting use of intercepted wire or oral communications and the fruits thereof in specified proceedings, including, in particular, grand jury proceedings. Section 2515 provides that:
Whenever any wire or oral communication has been intercepted, no part of the contents of such communication and no evidence derived therefrom may be received in evidence in any trial, hearing, or other proceeding in or before any court, grand jury, department, officer, agency, regulatory body, legislative committee, or other authority of the United States, a State, or a political subdivision thereof if the disclosure of that information would be in violation of this chapter.
18 U.S.C. § 2515.
Finally, § 2518(10)(a)(i) authorizes any “aggrieved person” — that is, “a person who was a party to any intercepted wire, oral, or electronic communication or a person against whom the interception was directed,” id. § 2510(11) — to move to suppress the contents of any unlawfully intercepted communication. It states:
Any aggrieved person in any trial, hearing, or proceeding in or before any court, department, officer, agency, regulatory body, or other authority of the United States, a State, or a political subdivision thereof, may move to suppress the contents of any wire or oral communication intercepted pursuant to this chapter, or evidence derived therefrom, on the grounds that—
(i) the communication was unlawfully intercepted—
Id. § 2518(10)(a)(i).6
Here, the target and the husband claim to be aggrieved persons within the meaning of § 2510, and they seek to enforce § 2515’s exclusionary rule to prohibit introduction to the grand jury of communications unlawfully intercepted by the witness. In response, the government stresses that § 2518 does not list grand jury proceedings among the proceedings in which an aggrieved person may move to suppress evidence. The government further contends that, even if the target and husband can properly move to enforce § 2515 in the context of a grand jury investigation, § 2515 contains a “clean hands” exception that permits disclosure to a grand jury of communications that were unlawfully intercepted by a private party without government complicity.
II. Standing and Jurisdiction
The government argues that the target and the husband lacked standing to proceed before the district court and now lack standing to proceed before us. The government also claims that we have no jurisdiction because the district court’s denial of Doe 1 and Doe 2’s motions is not a final order. We are unpersuaded by the government’s arguments. We conclude that the target and husband had standing to file their motion in the district court and that they continue to have standing to press this appeal. Moreover, because the subpoena was not directed to them, the husband and target did not have the option of being held in contempt and creating an immediately appealable order. Therefore, the denial of their motions to quash is a final order.
*1071A. Standing
“In essence the question of standing is whether the litigant is entitled to have the court decide the merits of the dispute----” Warth v. Seldin, 422 U.S. 490, 498, 95 S.Ct. 2197, 2205, 45 L.Ed.2d 343 (1975). Here the government argues that neither the district court nor this court could decide the merits of Doe 1 and Doe 2’s motions to quash the subpoena.
Both standing to sue and standing to appeal have constitutional as well as prudential elements. See Public Interest Research Group of New Jersey, Inc. v. Powell Duffryn Terminals, Inc., 913 F.2d 64, 70 n. 3 (3d Cir.1990) (referring to standing to sue); In re Grand Jury Matter (District Council 33), 770 F.2d 36, 39 (3d Cir.1985) (standing to appeal); see also Valley Forge Christian College v. Americans United for Separation of Church and State, Inc., 454 U.S. 464, 471-76, 102 S.Ct. 752, 757-61, 70 L.Ed.2d 700 (1982) (discussing constitutional and prudential standing requirements); Wheeler v. Travelers Ins. Co., 22 F.3d 534, 537-38 (3d Cir.1994) (same). The constitutional requirement of standing ensures that the “irreducible minimum” for Article III federal court jurisdiction, that there be “a case or controversy,” is present. Valley Forge, 454 U.S. at 472, 102 S.Ct. at 758-59. “Art. Ill requires the party who invokes the court’s authority to show that he personally has suffered some actual or threatened injury as a result of the putatively illegal conduct of the defendant, and that the injury fairly can be traced to the challenged action and is likely to be redressed by a favorable decision.... ” Id. (internal quotations and citations omitted). Thus, the three requirements for constitutional standing are injury in fact, causation, and redressability. See Lujan v. Defenders of Wildlife, 504 U.S. 555, 560-61, 112 S.Ct. 2130, 2136-37, 119 L.Ed.2d 351 (1992).
The same constitutional minima for standing to sue are also required for standing to appeal. To ensure that the appeals court is hearing an actual case or controversy, the appellant must be aggrieved by the district court order. See McLaughlin v. Pernsley, 876 F.2d 308, 313 (3d Cir.1989).
In the instant case, there can be no doubt that the target and husband meet the requirements for constitutional standing. Doe 1 and Doe 2 have had their telephone communications unlawfully intercepted and recorded by Doe 3, making them “aggrieved persons” within the meaning of Title III. 18 U.S.C. § 2510(11). The Act makes each disclosure of an unlawfully intercepted communication a separate violation, see id. § 2511(l)(c), so Doe 1 and Doe 2 would be injured in fact by further invasion of their privacy from disclosure of their communications to the grand jury.7 The causes of this injury are the subpoena and the government’s motion to compel, and the injury is redressable by quashing the subpoena. Since both intervenors remain aggrieved after the district court’s disposition, the constitutional requirements for standing to appeal as well as standing to sue are satisfied.8
Whether the intervenors also satisfy the prudential aspects of the standing requirement presents a more complex issue. Cf. Franchise Tax Board of California v. Alcan Aluminium Ltd., 493 U.S. 331, 336, 110 S.Ct. 661, 664-65, 107 L.Ed.2d 696 (1990) (finding that respondents easily satisfied constitutional requirements for standing, but that more searching inquiry was necessary to deter*1072mine if prudential requirements were also met). We recently described the concept of prudential standing in the following manner:
Prudential considerations further limit a plaintiffs ability to establish that she has standing. These considerations require that: (1) a litigant “assert his [or her] own legal interests rather than those of third parties,” (2) courts “refrain from adjudicating ‘abstract questions of wide public significance’ which amount to ‘generalized grievances,”’ and (3) a litigant demonstrate that her interests are arguably within the “zone of interests” intended to be protected by the statute, rule or constitutional provision on which the claim is based. The federal courts have adopted prudential limits on standing in order “to avoid deciding questions of broad social import where no individual rights would be vindicated and to limit access to the federal courts to those litigants best suited to assert a particular claim.”
Wheeler, 22 F.3d at 538 (citations omitted).
None of the prudential concerns discussed in Wheeler bars the target and husband from having standing to sue or standing to appeal in this case. In both the district court and here, the intervenors are asserting their own legal interests under Title III. Although they seek to quash a subpoena directed to a third party, and though their success in quashing that subpoena would have legal consequences for the witness, the target and husband’s claim is based on protecting their own statutory right to privacy by preventing a further disclosure of their communications.9 Their claim presents neither an abstract question nor a generalized grievance. Instead, it presents a precise question arising from a specific grievance about the use of grand jury subpoena power to compel production of recordings made in violation of the law. The privacy interests the target and husband assert are certainly within the “zone of interests” that Title III is intended to protect. Because it is Doe 1 and Doe 2 whose privacy has been violated and would again be violated by compliance with the subpoena, and since Doe 3 is the perpetrator of the unlawful recordings, it is the intervenors and not the witness herself who are best suited to assert the Title III claim. Recognizing standing in the target and husband in no way threatens to enmesh the federal courts in an action where no individual rights could be vindicated.
The three prudential considerations we described in Wheeler are the three which are referred to most commonly in discussions of prudential standing. See, e.g., Stehney v. Perry, 101 F.3d 925, 930-31 (3d Cir.1996) (applying Wheeler considerations, finding that litigant satisfied all three, and concluding that litigant had prudential standing); UPS Worldwide Forwarding, Inc. v. United States Postal Serv., 66 F.3d 621, 626-31 (3d Cir.1995) (same). However, neither this court nor the Supreme Court has restricted the scope of prudential analysis to just these three considerations. See generally Allen v. Wright, 468 U.S. 737, 751, 104 S.Ct. 3315, 3324, 82 L.Ed.2d 556 (1984) (“Standing doctrine embraces several judicially self-imposed limits on the exercise of federal jurisdiction, such as [the three considerations listed in Wheeler].”) (emphasis added). Indeed, the Supreme Court has insisted that “standing in its outer dimensions is a prudential concept to be shaped by the decisions of the courts as a matter of sound judicial policy and subject to the control of Congress.” ASARCO Inc. v. Radish, 490 U.S. 605, 613, 109 S.Ct. 2037, 2043, 104 L.Ed.2d 696 (1989); see also Bennett v. Spear, — U.S. -, -, 117 S.Ct. 1154, 1161, 137 L.Ed.2d 281 (1997) (stating that Congress can modify or abrogate prudential standing requirements). This can only mean that lower courts, when confront*1073ed with a question of whether to recognize prudential standing in a particular litigant, must consider all factors relevant to making “sound judicial policy.”
It is therefore appropriate to consider an additional prudential concern in determining whether to recognize standing in this case. Specifically, we must consider whether finding standing in Doe 1 and Doe 2 would unduly impede the grand jury investigatory process and thereby frustrate the public interest in fair and expeditious administration of the criminal laws. See generally United States v. Dionisio, 410 U.S. 1, 17, 93 S.Ct. 764, 773, 35 L.Ed.2d 67 (1973). “As a necessary consequence of its investigatory function, the grand jury paints with a broad brush.” United States v. R. Enterprises, Inc., 498 U.S. 292, 297, 111 S.Ct. 722, 726, 112 L.Ed.2d 795 (1991). “Traditionally the grand jury has been accorded wide latitude to inquire into violations of criminal law.” United States v. Calandra, 414 U.S. 338, 343, 94 S.Ct. 613, 617, 38 L.Ed.2d 561 (1974). However, it is equally true that “the powers of the grand jury are not unlimited.” Branzburg v. Hayes, 408 U.S. 665, 688, 92 S.Ct. 2646, 2660, 33 L.Ed.2d 626 (1972); see also R. Enterprises, 498 U.S. at 299, 111 S.Ct. at 727; Dionisio, 410 U.S. at 11, 93 S.Ct. at 770. Just as grand juries must operate within the confines of the Constitution, see Branzburg, 408 U.S. at 708, 92 S.Ct. at 2670, so too must they comply with the limitations imposed on them by Congress (as long as those limitations are not unconstitutional).
We perceive two ways in which a recognition of standing here might be regarded as having a potential to impede the grand jury’s investigative process. First, in those instances where a subpoena is quashed, this would, of course, deprive the grand jury of information it would otherwise have. But this kind of deprivation is properly attributable to Congress and cannot be cited as a prudential basis for denying standing. Congress decided when it adopted § 2515 that the grand jury is not permitted to receive the type of evidence sought by the subpoena here.
Second, a recognition of standing in situations such as this one will undoubtedly result in delays in grand jury investigations while trial courts are ruling on motions to quash and appellate courts are reviewing those rulings. While we acknowledge the general undesirability of such delays, it is nevertheless true that motion to quash practice has not traditionally been regarded as an unreasonable burden on grand jury proceedings. This is true whether the motion to quash is filed by the subject of a subpoena or by a third party with an important interest at stake.
The Supreme Court and this court have on several occasions allowed third parties to move to quash grand jury subpoenas directed to others. See generally Stehney, 101 F.3d at 931 (after concluding that constitutional and prudential standing requirements were satisfied, stating that another reason for recognizing standing is that courts have done so for similarly-situated plaintiffs in other eases). It is well-established that a litigant may have sufficiently important, legally-eognizable interests in the materials or testimony sought by a grand jury subpoena issued to another person to give the litigant standing to challenge the validity of that subpoena. See, e.g., Gravel v. United States, 408 U.S. 606, 92 S.Ct. 2614, 33 L.Ed.2d 583 (1972) (asserting constitutional privilege, U.S. Senator may move to intervene and quash subpoena directed at his assistant); In re Grand Jury Matter (JFK Hospital), 802 F.2d 96, 99 (3d Cir.1986) (assuming interve-nor has proprietary interest in third party’s subpoenaed records, intervenor has standing to appeal denial of motion to quash subpoena); District Council 33, 770 F.2d at 39 (same); In re Grand Jury Proceedings (FMC Corp.), 604 F.2d 798, 801 (3d Cir.1979) (allowing nonsubpoenaed client to intervene and appeal order directed to subpoenaed attorney that affected attorney-client privilege); In re Grand Jury Investigation (Intervenor A), 587 F.2d 589, 594 (3d Cir.1978) (asserting invasion of privilege, Representative has standing to intervene and move to quash subpoena directed to Clerk of House of Representatives); In the Matter of Grand Jury Impaneled Jan. 21, 1975 (Freedman), 541 F.2d 373, 377 (3d Cir.1976) (holding that attorney has standing to intervene and chai-*1074lenge subpoena directed at prothonotary on basis of attorney’s claim of privilege).
In In re Matter of Grand Jury (Schmidt), 619 F.2d 1022, 1026-27 (3d Cir.1980), we discussed the types of interests that may be asserted by a party other than the subject of the grand jury subpoena if that party is to have standing to quash the subpoena.10 There a federal grand jury had directed subpoenas ad testificandum to six employees of Schmidt. Schmidt moved to intervene and to quash the subpoenas, arguing that the grand jury was not investigating federal crimes and that the subpoenas were, therefore, abusive. Prior to Schmidt, all of our eases recognizing intervenor standing to quash a subpoena directed at another had involved intervenors with a property interest in, or claim of privilege respecting, the-information or materials sought by the subpoena. Thus, the government urged us to hold that standing in this context could only be present in those who could claim a property interest or privilege that had been (or would be) invaded by compliance with the subpoena.
We rejected this limitation as nonviable, explaining that we could imagine cases where other “valued rights” besides property or privilege would be affected and the interve-nor would have standing. Id. at 1026. We concluded:
Third party standing to assert claims of grand jury abuse cannot be determined by categorizing the claimed interest as one of property or privilege, but only by examining the nature of the abuse, and asking whether, and in what manner, it impinges upon the legitimate interests of the party allegedly abused.
Id. at 1027; see also United States v. Raineri, 670 F.2d 702, 712 (7th Cir.1982) (citing Schmidt, explaining that “party has standing to move to quash a subpoena addressed to another if the subpoena infringes upon the movant’s legitimate interests,” and holding that prosecutor had standing to move to quash trial subpoena based on his interests in having trial proceed expeditiously and without harassment to witness or undue prejudice to his case); but see In re Subpoenas to Local 478, 708 F.2d 65, 72-73 (2d Cir.1983) (criticizing Schmidt and saying that third party has standing to appeal denial of motion to quash only where district court’s order affects “fundamental rights whose legal and practical value will be destroyed if not vindicated on collateral review”).
Here, the interests asserted by the target and the husband can fairly be said to resemble a privilege. In light of Schmidt, however, we need not characterize their interests as such in order to find standing. While Schmidt involved a motion to quash a subpoena ad testificandum on the basis of alleged grand jury abuse in the form of investigation of non-federal crimes, Schmidt’s reasoning, and particularly its rejection of restricting standing solely to property or privilege interests, applies beyond these narrow factual and legal circumstances.
Difficult questions may arise as to whether an intervenor’s interest, if not a property interest or a privilege, is the kind of interest on which third party standing to quash a subpoena may be predicated, but we do not believe the instant case presents a difficult question. The husband and target have moved to quash the witness’ subpoena in order to protect privacy interests created and protected by Title III. Title III is intended to give “maximum protection” to these privacy interests, Cianfrani, 573 F.2d at 857, interests which we have found “sufficiently weighty” to justify even limitations on the Sixth Amendment right of public access to court proceedings. Id. at 856-57 (ordering that pretrial hearings be closed to public to extent reasonably necessary to protect against disclosure of unlawfully intercepted communications). The Act protects the privacy interests asserted here by making it a crime for unlawfully intercepted communications to be disclosed to anyone, including the grand jury, § 2511(1)(c), and by additionally and explicitly prohibiting presentation of *1075such evidence to a grand jury, § 2515. For the district court to compel enforcement of the subpoena would, if Doe 1 and Doe 2 are right on the merits, be in direct contradiction of these statutory provisions, and would therefore involve the district court in the commission of a federal crime.
We conclude that the privacy interests protected by Title III, which expressly include the interests in not having one’s unlawfully intercepted communications disclosed to a grand jury or otherwise disclosed, are interests on which one may predicate standing to quash a subpoena, including a subpoena directed to another person. Accordingly, we hold that Doe 1 and Doe 2 satisfy the constitutional and prudential requirements for both standing to sue and standing to appeal.
Before turning to the government’s attack on our appellate jurisdiction, we pause to consider another contention the government advances, erroneously we think, as a standing argument. It is that Doe 1 and Doe 2 are entitled to no relief because § 2518(10)(a)(i) does not authorize a motion to suppress in a grand jury proceeding. We believe this is more accurately characterized as a contention that one in the position of Doe 1 and Doe 2 lacks a cause of action to seek the relief sought here.11 While we agree that § 2518(10)(a)(i) does not confer upon Doe 1 and Doe 2 a right to secure a suppression order in the present context, we conclude that Federal Rule of Criminal Procedure 17(c) and the traditional motion to quash practice that it authorizes do confer upon them a cause of action to move to quash the subpoena duces tecum.
Under § 2518(10)(a)(i), an aggrieved person such as the target and the husband “may move to suppress the contents of any wire or oral communication intercepted pursuant to this chapter or evidence derived therefrom, on the grounds that ... the communication was unlawfully intercepted.” Section 2518 lists a number of proceedings in which an aggrieved person may file such a motion to suppress, but grand jury proceedings are absent from this list. Therefore, as we observed in a prior case, § 2518(10)(a) does not authorize a victim of an illegal wiretap to move to suppress unlawful Title III evidence before the grand jury. See In re Grand Jury Proceedings (Egan), 450 F.2d 199, 206 (3d Cir.1971), aff'd, Gelbard v. United States, 408 U.S. 41, 92 S.Ct. 2357, 33 L.Ed.2d 179 (1972); see also United States v. Woods, 544 F.2d 242, 248 (6th Cir.1976) (holding that § 2518(10)(a) does not authorize grand jury target to file pre-indictment motion to suppress); Dudley v. United States, 427 F.2d 1140, 1141-42 (5th Cir.1970) (same).
Here, however, Doe 1 and Doe 2 did not file motions to suppress. Instead, they filed motions to quash a subpoena. Federal-Rule of Criminal Procedure 17(c) creates a right in specified circumstances to secure relief from a court in the form of an order quashing a grand jury subpoena duces tecum. Rule 17(e) states: “The court on motion made promptly may quash or modify the subpoena if compliance would be unreasonable or oppressive.” Despite the importance of a generally unfettered grand jury investigative process, “the grand jury’s subpoena power is not unlimited,” Calandra, 414 U.S. at 346, 94 S.Ct. at 619, and Rule 17(c) motions to quash are indisputably one of the “limit[s] imposed on a grand jury.” R. Enterprises, 498 U.S. at 299, 111 S.Ct. at 727; see also Calandra, 414 U.S. at 346 n. 4, 94 S.Ct. at 619 n. 4. “Grand juries are subject to judicial control and subpoenas to motions to quash.” Branzburg, 408 U.S. at 708, 92 S.Ct. at 2670; see also In re Horn, 976 F.2d 1314 (9th Cir.1992) (granting attorney’s Rule 17(c) motion to quash subpoena that was overbroad and unreasonable because compliance would violate attorney-client privilege).
There is nothing in the language or structure of Rule 17(c) or Title III suggesting that Rule 17(e) cannot be used by a victim of an unlawful interception to protect his or her *1076privacy interests under Title III. We read Congress’s decision not to authorize a motion to suppress evidence before the grand jury as nothing more than that. If Congress had also intended to prohibit third parties from using traditional motion to quash practice to enforce their rights under Title III, we believe it would have done so by stating in Title III that .§ 2518(10)(a)(i) is the exclusive means of enforcing § 2515 in a grand jury context.12 We therefore hold that Rule 17(c) provides a cause of action for an aggrieved person to move to quash a grand jury subpoena duces tecum compliance with which would violate §§ 2515 and 2511(l)(c).
In reaching this conclusion, we reject the notion that there is something inherently inconsistent about a party having a right to quash a grand jury subpoena duces tecum when he or she has no right to move to suppress the evidence that is the subject of the subpoena. The relief that may result from the intervenors’ motion to quash is equivalent to the relief that would result from a successful motion to suppress only because the government does not possess the evidence the grand jury has ordered to be produced. In the large number of cases where the government already has the evidence that an aggrieved person asserts cannot be introduced to the grand jury, a motion to quash will do the aggrieved person no good, because there will be no subpoena to be quashed. Here, however, the grand jury must employ its subpoena powers and the enforcement authority of the courts to obtain the evidence it seeks. We do not believe Congress intended the grand jury and the courts to use their respective powers to compel violations of Title III. When a subpoena is required to gain access to illegally intercepted communications, the independent cheeks on use of the subpoena power provide a cause of action to enforce the § 2515 evi-dentiary prohibition.
B. Final Order
In order for us to have appellate jurisdiction, the target and husband must not only have standing to appeal; the district court’s order must also be a final order as to them. See JFK Hospital, 802 F.2d at 99; District Council 33, 770 F.2d at 38. Since we find that the denial of their motions to quash was a final order, we conclude that we have jurisdiction to reach the merits of this appeal.
An order denying a motion to quash is generally not a final order permitting immediate appellate review unless the movant is held in contempt. See United States v. Ryan, 402 U.S. 530, 91 S.Ct. 1580, 29 L.Ed.2d 85 (1971); Cobbledick v. United States, 309 U.S. 323, 60 S.Ct. 540, 84 L.Ed. 783 (1940); Alexander v. United States, 201 *1077U.S. 117, 26 S.Ct. 356, 50 L.Ed. 686 (1906). “Where, however, a person lacks the opportunity to contest the subpoena by disobedience because it is not directed to him or her, an order denying a motion to quash is final as to that individual.” District Council 33, 770 F.2d at 38; see also Schmidt, 619 F.2d at 1024-25. “The court’s order denying a motion to quash is effectively a final order to those who have no further steps they can follow.” JFK Hospital, 802 F.2d at 98 (finding denial of motion to quash to be final order with respect to intervenors who could not proceed to contempt or order subject of subpoena to do so); see also District Council 33, 770 F.2d at 38 (same). When an interve-nor does not have the option of contempt, the denial of an intervenor’s motion to quash must be treated as final to provide effective appellate review, since the subject of the subpoena will frequently be unwilling to suffer the penalties of contempt in order to protect the intervenor’s interest. See FMC Corp., 604 F.2d at 800-01. Without immediate appeal, there would be no other proceeding in which the intervenor’s claim could be asserted. See Schmidt, 619 F.2d at 1025.
The district court’s denial of Doe 1 and Doe 2’s motions to quash is a final order as to them. Since the subpoena is directed to Doe 3 and not to themselves, the target and husband do not have the option of creating an appealable order by standing in contempt. Although the witness has, thus far, been willing to be held in contempt, she has done so on her own behalf, on grounds entirely different from those the intervenors have asserted. There is no guarantee she will continue to accept contempt, and the target and husband’s opportunity for appellate review should not be dependent on her willingness to do so.
III. Merits
We come, finally, to the merits of the intervenors’ motions to quash the grand jury subpoena duces tecum issued to the witness. The target and the husband contend that the motion must be quashed because compliance with it would constitute a violation of § 2515, prohibiting introduction to a grand jury of unlawfully intercepted communications, and of § 2511(l)(c), prohibiting disclosure of unlawfully intercepted communications. We agree.
The government does not contest that compliance with a subpoena requiring a violation of §§ 2515 and 2511(l)(c) would be “unreasonable” within the meaning of Federal Rule of Criminal Procedure 17(c). Nor does it dispute that compliance with the subpoena duces tecum, currently before us would be a violation of the literal terms of §§ 2515 and 2511(l)(c): It could not in good faith contend otherwise. The language of § 2515 could not be any clearer: ' “Whenever any wire or oral communication has been intercepted, no part of the contents of such communication and no evidence derived therefrom may be received in evidence in any ... proceeding ... before any ... grand jury ... if the disclosure of that information would be in violation of this chapter.” 18 U.S.C. § 2515. Section 2511(l)(c) is also unambiguous, making it a crime whenever one “intentionally discloses, or endeavors to disclose, to any person the contents of any wire, oral, or electronic communication, knowing or having reason to know that the information was obtained through the interception of a wire, oral, or electronic communication in violation of this subsection.” Id. § 2511(l)(c). Since it is conceded by all parties that Doe 3’s interceptions were made in violation of § 2511(l)(a), and disclosure of the contents of the intercepted communications would be a violation of § 2511(l)(e), the plain language of § 2515 prohibits use of the subpoenaed materials as grand jury evidence.
Yet, despite these concessions, the government insists that the district court properly denied Doe 1 and Doe 2 relief because there is an unarticulated “clean hands” exception to the strictures of §§ 2515 and 2511(l)(c). We are not persuaded.13
*1078It is true, as the government emphasizes, that “in rare cases [where] the literal application of a statute will produce a result demonstrably at odds with the intentions of its drafters,” Griffin v. Oceanic Contractors, Inc., 458 U.S. 564, 571, 102 S.Ct. 3245, 3250, 73 L.Ed.2d 973 (1982), we may look to those intentions rather than the literal terms of the statute. See also United States v. American Trucking Ass’ns, 310 U.S. 534, 543-44, 60 S.Ct. 1059, 84 L.Ed. 1345 (1940) (“When [a statute’s plain] meaning has led to absurd or futile results ... this Court has looked beyond the words to the purpose of the act. Frequently ... even when the plain meaning did not produce absurd results but merely an unreasonable one plainly at variance with the policy of the legislation as a whole this Court has followed that purpose, rather than the literal words.”) (internal quotations and footnotes omitted). This is not such a “rare case,” however. Literal application of §§ 2515 and 2511(l)(c) means only that the grand jury cannot hear the contents of unlawfully intercepted communications. This protects the privacy of Doe 1 and Doe 2 from further invasions, consistent with the intent of Title III. Thus, application of the plain language of §§ 2515 and 2511(l)(c) leads to no absurd, futile, or even unreasonable result in this case. Cf. United States v. Underhill, 813 F.2d 105, 111-12 (6th Cir.1987) (departing from plain language where it would allow defendant to shield himself from prosecution under anti-gambling statute by suppressing communications he unlawfully intercepted to further illicit gambling scheme, clearly an absurd and unintended result of Title III).
Even if we were prepared to ignore the literal language of the statute, however, we find no other indication that Congress intended the clean hands exception the government would have us read into §§ 2515 and 2511(l)(c). The statutory structure makes it clear that any interceptions of communications and invasions of individual privacy are prohibited unless expressly authorized in Title III. See Gelbard, 408 U.S. at 46, 92 S.Ct. at 2360; Cianfrani, 573 F.2d at 855. The invasion of Doe 1 and Doe 2’s privacy that would result from introduction of Doe 3’s recordings to the grand jury is nowhere expressly authorized under Title III, clearly suggesting that Congress intended no clean hands exception.
The government cites a statement in the legislative history, to the effect that “[t]he perpetrator must be denied the fruits of his unlawful actions in civil and criminal proceedings,” 1968 U.S.C.C.A.N. at 2156, to support its contention that Congress did not intend to deprive the government of the use of unlawful evidence when the government is not the “perpetrator” of the illegal interception. But this statement evidences no intent that a non-perpetrator may use the fruits of another’s unlawful actions. To the contrary, the statute and its legislative history provide that anyone who discloses the contents of a communication knowing it to be the fruit of an illegal invasion of privacy is guilty of a criminal offense, see 18 U.S.C. § 2511(l)(c); 1968 U.S.C.C.A.N. at 2181-82, and likewise § 2515’s evidentiary prohibition must be applied to perpetrators and non-perpetrators alike.
Moreover, if we were to concern ourselves with the cleanliness of hands, there would be no reason to limit our consideration to the hands of the government alone. It is the grand jury that issued the subpoena, and it is the district court that ordered it to be enforced. Given the unambiguous language of § 2515, compliance with the subpoena would be a violation of an express congressional prohibition. Were we to allow a compelled violation of this federal law, the hands of the grand jury, the district court, and ourselves would all become sullied. See Egan, 450 F.2d at 209 (“It seems beyond question that a district court may not compel the violation of an express congressional prohibition.”). Since § 2515 was enacted, in part, “to protect the integrity of court ... proceedings,” Gelbard, 408 U.S. at 51, 92 S.Ct. at 2363 (internal quotations omitted), Congress cannot have intended that we ignore any taint on grand jury and judicial hands. In short, it is incomprehensible that Congress intended the admissibility of unlawfully intercepted communications to turn solely on whether the government participated in the interceptions.
We agree with the intervenors that, when enacting Title III, Congress performed all of *1079the balancing necessary of the public interest in law enforcement against the privacy interests of citizens. As we said in Cianfrani,
Congress’s overriding interest in protecting privacy to the maximum extent possible is evident in Title III. The legislative history of the statute emphasizes the concern of its drafters that the Act preserve as much as could be preserved of the privacy of communications, consistent with the legitimate law enforcement needs that the statute also sought to effectuate. Similarly, the complex and overlapping provisions are strong evidence that Congress intended to regulate strictly disclosure of intercepted communications, limiting the public revelation of even interceptions obtained in accordance with the Act to certain narrowly defined circumstances.
573 F.2d at 856. We have no authority to restrike the balance that Congress has already struck by placing in the statute a clean hands exception that Congress did not.
In sum, Title III is designed to protect the privacy of communications and the integrity of the courts. Compliance with the subpoena duces tecum directed to Doe 3 would violate § 2515’s evidentiary prohibition and would work a further invasion of Doe 1 and Doe 2’s privacy rights in violation of § 2511(l)(c). Compliance with the subpoena would, therefore, be unreasonable, and the subpoena must be quashed.
IV. Conclusion
For the foregoing reasons, we will reverse the district court, and remand with an order to grant the intervenors’ motions to quash the subpoena duces tecum.
. "Wiretapping” is a general term used to refer to all types °f illegal interceptions, including surreptitious recording of telephone conversations.
. In a related case, In re Grand Jury, 111 F.3d 1083 (3d Cir.1997), this court denied the witness' motions to quash both of the subpoenas. The witness had moved to quash on the basis of the privilege against adverse spousal testimony.
. The court did grant the motions to quash to the extent the subpoenas sought materials which would reveal confidential attorney-client or marital communications. The government did not oppose granting the motions with regard to these two privileges and these issues are not before us in this appeal.
. This appeal presents solely questions of law, over which we exercise plenary review. See United States v. Hayden, 64 F.3d 126, 128 (3d Cir.1995).
.Most of the provisions not discussed in the text relate either to manufacture and confiscation of communication intercepting devices, 18 U.S.C. §§ 2512 & 2513, or to the procedures whereby government investigative and law enforcement officers can obtain authorization to intercept communications and disclose and use the contents of them, id. §§ 2516-2519. Other sections provide for the Attorney General to seek an injunction against any person engaged in -or about to engage in a felony violation of Title III, id. § 2521, and for a court authorizing an interception to order a noncomplying telecommunications carrier to comply with the order, id. § 2522.
. Aggrieved persons may also move to suppress on the grounds that the communication was intercepted pursuant to a court authorization that was insufficient on its face or intercepted in a manner not in conformity with an appropriate authorization. See 18 U.S.C. § 2518(10)(a)(ii)-(iii).
. "Congress may enact statutes creating legal rights, the invasion of which creates standing, even though no injury would exist without the statute." Linda R.S. v. Richard D., 410 U.S. 614, 617 n. 3, 93 S.Ct. 1146, 1148 n. 3, 35 L.Ed.2d 536 (1973).
. That Doe 1 and Doe 2 satisfied the requirements for intervening in the district court does not automatically mean they also satisfy the constitutional requirements for appellate standing. See Diamond v. Charles, 476 U.S. 54, 68, 106 S.Ct. 1697, 1706-07, 90 L.Ed.2d 48 (1986). "The relationship between the interests required for intervention in the district court and the interests required to confer Article III standing on appeal has not been clearly delineated.” McLaughlin, 876 F.2d at 313-14. In the instant case, the government does not appeal the district court’s ruling for appellants’ on their motions to intervene. Hence, we are only reviewing whether Doe 1 and Doe 2 have standing, and this is not the occasion to attempt to clarify the relationship between the requirements for intervention and standing to appeal.
. Even if Doe 1 and Doe 2 are viewed as asserting the interests of Doe 3 and not of themselves, this would not necessarily deprive them of standing. We apply a balancing test to determine whether a litigant has prudential standing to bring an action on behalf of a third party. See Wheeler, 22 F.3d at 539 n. 11. The factors we consider in applying this test include potential conflicts of interest between the litigant and the third party, obstacles to suit by the third party, and the closeness of the relationship between the litigant and the third party. See id. Since we conclude that the target and husband have prudential standing to assert their own interests under Title III, we need not decide whether they would have standing to assert the witness’ interests.
. Schmidt's discussion of the intervenor-em-ployer’s standing to move to quash a subpoena directed at its employees does not distinguish between standing to sue and standing to appeal. See 619 F.2d at 1026-27. Yet, by deciding that the employer had standing to move to quash the subpoena, and by reaching the merits of its claims on appeal, we necessarily found that the employer had both standing to sue and standing to appeal.
. See generally Davis v. Passman, 442 U.S. 228, 239 n. 18, 99 S.Ct. 2264, 2274 n. 18, 60 L.Ed.2d 846 (1979) ("[SJtanding is a question of whether a plaintiff is sufficiently adversary to a defendant to create an Art. Ill case or controversy,. or at least to overcome prudential limitations on federal-court jurisdiction, cause of action is a question of whether a particular plaintiff is a member of the class of litigants that may, as a matter of law, appropriately invoke the power of the court ....”) (citations omitted).
. The government relies heavily on the following statement in the legislative history:
[Section 2518(10)(a)] must be read in connection with section[] 2515 ... which it limits. It provides the remedy for the right created by section 2515. Because no person is a party as such to a grand jury proceeding, the provision does not envision the making of a motion to suppress in the context of such a proceeding itself. Normally, there is no limitation on the character of evidence that may be presented to a grand jury, which is enforcible [sic] by an individual. There is no intent to change this general rule. It is the intent of the provision only that when a motion to suppress is granted in another context, its scope may include use in a future grand jury proceeding.
S.Rep. No. 90-1097, reprinted in 1968 U.S.C.C.A.N. 2112, 2195.
The drafter of § 2518(10)(a) clearly regarded a grand jury proceeding as something distinct from a court proceeding, and sought not to alter the general rule that motions to suppress cannot be filed in a pre-indictment setting. The legislative history, like the Act itself, is silent on motions to quash. Nothing in the legislative history of § 2518(10)(a) suggests that Congress made a decision that traditional motion to quash practice before a court would be unavailable to an aggrieved party. Nor has the government suggested any reason why Congress, after specifically prohibiting the use of illegally intercepted communications by a grand jury, might have wanted that practice to be unavailable. In this connection, we note that Congress clearly did not intend that all persons aggrieved by grand jury conduct in violation of § 2515 have no remedy other than § 2518(10)(a). As we have pointed out, § 2520 provides an aggrieved party with a civil action against a violator to recover "such relief as may be appropriate.” Moreover, as the Supreme Court held in Gelbard v. United States, 408 U.S. 41, 92 S.Ct. 2357, 33 L.Ed.2d 179 (1972), it is entirely consistent with the Congressional intent behind Title III for those aggrieved persons who are the subject of a grand jury subpoena to simply refuse to comply and use § 2515 as a shield in the ensuing contempt proceeding.
. We note that two other federal circuit courts have been presented with the question of whether to read this same clean hands exception into § 2515 and have reached conflicting conclusions. See United States v. Murdock, 63 F.3d 1391 (6th Cir.1995) (deciding that § 2515 does contain clean hands exception); United States v. Vest, 813 F.2d 477 (1st Cir.1987) (rejecting clean hands exception).