Reply #14: Unfortunately, PL 107-40 (SJ 23) says...

[primavera]

(a) That the President is authorized to use all necessary and appropriate force against those nations, organizations, or persons he determines planned, authorized, committed, or aided the terrorist attacks that occurred on September 11, 2001, or harbored such organizations or persons, in order to prevent any future acts of international terrorism against the United States by such nations, organizations or persons.

You gotta admit, this is a pretty far-reaching blank check Congress, in a moment of colossal stupidity and criminal dereliction, gave to him. I mean, don't get me wrong, the shrub deserves to be tried for war crimes, but still, given that Congress basically came right out and gave him dictatorial powers they weren't authorized to give him, their hands are pretty dirty too.