Protesters shout at JPMorgan CEO before Senate hearing

The head of the nation's largest bank was in Washington to explain how his bank had lost billions of dollars in a complex trade on corporate debt, which has reignited the debate on oversight of the financial system. The bank's solvency is not thought to be endangered by the losses.

As soon as Dimon took his seat at the witness table, protesters in the audience stood up and began shouting.

"This man is a crook and needs to go to jail!" yelled one man. "These men are predators on the American taxpayers' money."

Read more on The Hill's On The Money blog.