WASHINGTON – Senator Elizabeth Warren said Thursday morning that “we have to pick up the slingshots again” in the David versus Goliath battle with big banks.

Warren, a Massachusetts Democrat who entered politics as a critic of big banks, used a fiery speech at George Washington University Law School marking five years since the collapse of Lehman Brothers to renew her call to reinstate the Glass-Steagall Act, aimed at limiting the size and scope of banks, which are federally insured.

“It would reduce ‘too big’ by dismantling the behemoths,” she said. “Big banks would still be big – but not too big to fail or, for that matter, too big to manage, too big to regulate, too big for trial, or too big for jail.”