WASHINGTON -- Attorney General Michael Mukasey raised concerns that government agents and national security lawyers may be at risk for criminal prosecution after his likely successor, Eric Holder, declared that waterboarding of terror detainees is torture.

The 67-year-old former federal judge in New York, who took office 14 months ago, said in an interview that the incoming administration of President-elect Barack Obama faces a "conundrum" as it tries to shut down the prison at Guantanamo Bay, Cuba.

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