To make up for the loss of revenue in other areas, they have been trying to collect more revenue from fees. Last year, some banks tried to charge customers for using debit cards. That unleashed a backlash among consumers and helped fuel anti-Wall Street protests. The banks ultimately dropped these fees. But others have remained.
At the same time, some in Congress are calling for separating commercial and investment banking, which essentially would spur the dismantling of most of the biggest banks.
Rexrode reported from New York.
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