WASHINGTON — The U.S. may extend a $90 billion fee on the country's largest banks beyond the planned 10 years if the government hasn't recouped the cost of the financial rescue, Treasury Secretary Timothy Geithner said Tuesday.

In testimony to the Senate Finance Committee, Geithner said the U.S. was committed to cutting its huge budget deficit. But he cautioned that deep and immediate budget cuts were not possible because it could damage the economic recovery.

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