concurring.
Although I remain convinced that the Court’s construction of the statute does not accurately reflect the intent of the Congress that enacted it, see United States v. Board of Comm’rs of Sheffield, 435 U. S. 110, 140-150 (Stevens, J., dissenting), Mr. Justice Marshall has demonstrated that the rationale of the Court’s prior decisions- compels the result it reaches today. Accordingly, I join his opinion for the Court.