(CNN) - Iran likely has enough material to make a nuclear weapon, Joint Chiefs of Staff Adm. Mike Mullen told CNN's John King Sunday.
“We think they do, quite frankly," Mullen said on State of The Union with John King. "Iran having a nuclear weapon, I believe, for a long time, is a very, very bad outcome for the region and for the world."
Tehran has denied pursuing nuclear weapons, and insists the country's nuclear program is for peaceful purposes.
Mullen also said he is watching North Korea closely, although he also said he and Defense Secretary Robert Gates have yet to make a recommendation on how to approach that country.
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"There has been no recommendations one way or another," he said. "There's a lot of focus on this and then recommendations and certainly policy discussions will come based on the timing and what North Korea does."