UNITED STATES v. RICHARDSON, 418 U.S. 166 (1974) 

MR. JUSTICE POWELL, concurring.

   Unrestrained standing in federal taxpayer or citizen suits would create a remarkably illogical system of judicial supervision of the coordinate branches of the Federal Government. ... [I]ssues would be presented in abstract form, contrary to the Court's recognition that "judicial review is effective largely because it is not available simply at the behest of a partisan faction, but is exercised only to remedy a particular, concrete injury." Sierra Club v. Morton, 405 U.S. 727, 740-741, n. 16 (1972). n10

    n10 Some Western European democracies have experimented with forms of constitutional judicial review in the abstract, see, e. g., M. Cappelletti, Judicial Review in the Contemporary World 71-72 (1971), but that has not been our experience, and I think for good reasons.