WASHINGTON — Federal Reserve Board Chairman Ben Bernanke said Thursday it would take U.S. regulators at least another year to advance their ongoing efforts to "end too big to fail."

In his second appearance this week on Capitol Hill to update lawmakers on the state of the U.S. economy, Bernanke hedged his bets on how long it would take to implement the Dodd-Frank reform law. Instead, he seemed to seek some breathing room for U.S. regulators before lawmakers attempted to further toughen the law.

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