The unconstitutionality of the Congressional GOP's ACORN obsession

Yesterday, GOP Rep. Paul Broun  had a five-minute dialogue with Rep. Alan Grayson about the unconstitutionality of the Congressional GOP's numerous amendments directed exclusively at ACORN, all of which bar ACORN from receiving any government contracts due to alleged wrongdoing (not adjudicated by any court).  While being questioned by Grayson about whether these measures are unconstitutional "bills of attainder" -- acts of Congress that punish specific individuals for alleged...