111th Congress H.R. 1586 vs The Bill of Attainder of the U.S. Constitution

In a wild-eyed stampede, the U.S. House of Representatives passed H.R. 1586 to "recapture" bonuses paid to employees of AIG. The Congressional Research Service has issued a report raising serious questions about whether or not it's considered a Bill of Attainder as forbidden in Article I, section 9, clause 3 of the United States Constitution. It makes you wonder, of the 328 House Representatives that voted for H.R. 1586, how many of them have read the Constitution recently? Or, at all?