"We're determined to deny radical groups the support and sanctuary of outlaw regimes. State sponsors like Syria and Iran have a long history of collaboration with terrorists and they deserve no patience from the victims of terror," Bush said.
During the president's speech on terrorism, a heckler yelled: "Mr President, what is terrorism? What is terrorism? Step down now." The man was escorted out and others in the audience booed the heckler.
The United States has repeatedly expressed concern over Iran and its nuclear energy program, which it suspects could be a cover for nuclear weapons development. Iran insists the program is intended for civilian electricity generation.
Last year, the United States and its allies, in fighting proliferation of deadly weapons, "have stopped more than a dozen shipments of suspected weapons technology including equipment for Iran's ballistic missile program," Bush said.