President Obama’s top military and intelligence advisers disagree on the question of whether Iran is intentionally pursuing nuclear weapons, leaving lawmakers confused about what to believe. Adm. Michael Mullen, the chairman of the Joint Chiefs of Staff and a hold-over from the Bush administration, said in no uncertain terms Wednesday that he believes Iran is pursuing nuclear weapons and that its government has made that decision. “I believe that Iran is on a path to develop nuclear weapons,” Mullen told members of Young Professionals in Foreign Policy, a Washington based nonprofit organization focused on professional development, “We can debate the timeline, but it’s very clear to me that that’s their path and that’s what their leadership is about.” Mullen’s comments on Iran come only one day after Adm. Dennis C. Blair , President Obama’s new director of national intelligence, gave the opposite analysis, saying he believed Iran had not made the decision to pursue a nuclear weapons capability. “We assess that Iran has not yet made that decision,” Blair told the Senate Armed Services Committee March 10, speaking on behalf of the entire intelligence community.