WASHINGTON, DC - JUNE 12: U.S. Attorney General Eric Holder jokes with photographers before testifying to the Senate Judiciary Committee on Capitol Hill June 12, 2012 in Washington, DC. Holder faced questions from senators about the ongoing Operation Fast and Furious investigation, his decision to ordered two federal prosecutors to begin criminal investigations into a series of national security leaks to the news media and other subjects. (Photo by Chip Somodevilla/Getty Images)
