US lawmakers Sunday vowed quick action against Iran following a report that weapons experts believe Tehran has the know-how to build an atomic bomb – even as a senior US official downplayed the news article. A chorus of congressional voices, both Republican and Democratic, urged tough action against Tehran following a New York Times report that the International Atomic Energy Agency (IAEA) has determined Iran now has “sufficient information” to build a nuclear weapon. US lawmakers said the revelation warranted an immediate and severe response. “The Iranians will have a nuclear weapon if something doesn't change their minds. We need tough sanctions. We need to do them now,” Democratic Senator Evan Bayh told “Fox News Sunday.” Republican Senator Lindsey Graham, a leading congressional voice on defense and security matters, said he would like Congress to set aside a week dedicated to a raft of new sanctions legislation against the Islamic republic. “Let's have Iran week in the Senate and get something done,” he said, proposing to discuss a series of measures “that would empower the president and our country to be tough and to put actions behind words.” But a top White House adviser Sunday downplayed the report, telling US television that Washington would “stand by the reports that we've put out,” regarding Iran's nuclear ability. “Whether they know how to do it or not is a matter of some conjecture,” Jones said. Lawmakers said they still supported US initiatives to engage Tehran in talks, but were losing faith in the prospect that diplomacy alone will force Iran to abandon its alleged nuclear weapons program. “Having this dialogue is good, but you've got to hold them to their word. What matters ultimately is not what they say, but what they do,” said Bayh. The Times report followed recent revelations that Iran secretly built a second uranium enrichment plant near the holy city of Qom, which further raised suspicions about the aim of its controversial nuclear program. The report described a complex program apparently launched in 2002 and run by the Iranian Defense Ministry that seeks to develop “a nuclear payload to be delivered using the Shahab 3 missile system.”
