Sen. Pat Leahy has introduced the War Profiteering Prevention Act of 2007. It makes is a crime to materially overvaluing any good or service for war, relief, or reconstruction. It provides for 20 years in prison and $1 million or twice the amount of illegal gross profit. It will remove the safe harbor that profiteers have used in Iraq that their illegal conduct is a crime against Iraq, not the United States.
A few examples:
Center for Media and Democracy
Center for Corporate Policy
In These Times
Seeing the Forest predicted this is a certain Bush veto. His Kleptocracy will expect nothing less.
Addition: Trying to write this between football games I forgot to give art credit to the Propaganda Remix Project, Micah Wright's brilliant rethinking of old propaganda posters for modern times.