Robert Gibbs, the White House press secretary, said today that Senator Kit Bond, the ranking Republican on the Intelligence Committee, should apologize for suggesting that the administration leaked information in the investigation of the Nigerian man accused of trying to blow up a jetliner on Christmas Day.

"The notion that somehow the White House, in conjunction with agencies involved in this interrogation, gave out classified information? Yes," Mr. Gibbs said. "I think an apology on that is owed, because it's not true."

The comment from Mr. Gibbs was the latest in a series of escalating charges between the White House and Congressional Republicans in the case of Umar Farouk Abdulmutallab, 23, whose prosecution on criminal charges has fueled an intense political debate...

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