One contractor, a prominent New York law firm, helped the Treasury Depart­ment develop a plan to restructure U.S. automakers. Another assisted the Justice Department with law enforcement training in hot spots around the world, including Afghanistan and Iraq. A third collected more than two-thirds of a billion dollars over the past five fiscal years to provide legal and other assistance for DOJ’s asset -forfeiture efforts. 

What these contractors, and thousands more like them, have in common is that they engaged in legal work for the U.S. government from fiscal 2008 to fiscal 2012. And they’re typically reluctant to answer any questions about the specifics of the work they perform for the government.