JPMorgan Chase CEO Jamie Dimon, head of the largest bank in the United States, prepares to testify June 13, 2012, on Capitol Hill before the Senate Banking Committee about how his company recently lost more than $2 billion on risky trades and whether its executives failed to properly manage those risks. (Associated Press)

Photo by: Haraz N. Ghanbari

JPMorgan Chase CEO Jamie Dimon, head of the largest bank in the United States, prepares to testify June 13, 2012, on Capitol Hill before the Senate Banking Committee about how his company recently lost more than $2 billion on risky trades and whether its executives failed to properly manage those risks. (Associated Press)