Secretary of State Hillary Rodham Clinton suggested Friday that North Korea may not have been actively pursuing a nuclear weapons program as intensely as the previous Bush administration had claimed.

"I think that there is a sense among many who have studied this that there may be some program, somewhere," Clinton said in an interview with Fox News. "But no one can point to any specific location. Nor can they point to any specific outcome of whatever might have gone on, if anything did."

"I don't have any doubt that they would try whatever they possibly could," Clinton added. "Have they? I don't know that, and nobody else does, either."

Clinton said that the U.S. should continue, however, to pursue disabling the country's ability to process plutonium.

Watch a video of the Clinton interview: