It's something any bank would demand to know before handing out a loan: Where's the money going?

But after receiving billions in aid from U.S. taxpayers, the nation's largest banks say they can't track exactly how they're spending the money or they simply refuse to discuss it.

"We've lent some of it. We've not lent some of it. We've not given any accounting of, 'Here's how we're doing it,'" said Thomas Kelly, a spokesman for JPMorgan Chase, which received $25 billion in emergency bailout money. "We have not disclosed that to the public. We're declining to."

What about oversight?:

(Elizabeth) Warren, the congressional watchdog appointed by Democrats, said her oversight panel will try to force the banks to say where they've spent the money.

"It would take a lot of nerve not to give answers," she said.

But Warren said she's surprised she even has to ask.

"If the appropriate restrictions were put on the money to begin with, if the appropriate transparency was in place, then we wouldn't be in a position where you're trying to call every recipient and get the basic information that should already be in public documents," she said.