US Vice President Dick Cheney on Thursday said he had no reason to doubt a new US intelligence report assessing that Iran halted its nuclear weapons program in 2003. "There's always the possibility that circumstances will change. But I think they've done the best job they can with the intelligence that's available," Cheney told Politico.com. The vice president stressed that the administration would not change its policy towards Iran. "We still think there's a need to continue the course we've been on to persuade the Iranians not to enrich uranium," he said. Cheney added that the decision to make public certain parts of the report came in part due to fears that it would be leaked to the media.