After three years, the bipartisan Commission on Wartime Contracting completed its business this week. In its final report to Congress (PDF), it estimates that the federal government has lost between $31 and $60 billion to contractor fraud and waste since the wars in Afghanistan and Iraq started. "The government was not prepared to go into Afghanistan in 2001 or Iraq in 2003 using large numbers of contractors, and is still unable to provide effective management and oversight of contract spending," said commission co-chairman Michael Thibault.

Beyond its bureaucratic title ("Inattention to contingency contracting leads to massive waste, fraud, and abuse"), the most interesting chapter of the commission's 248-page report reads like a greatest-hits list of expensive bloopers that make that famous $600 Pentagon toilet seat look like a bargain. In ascending order of egregiousness, here are the top 10 war-contractor boondoggles detailed in the report: