U.S. intelligence agencies believe that Iran is prepared to launch terrorist attacks inside the United States in response to perceived threats from America and its allies, the U.S. spy chief said Tuesday.

That plot “shows that some Iranian officials — probably including Supreme Leader Ali Khamenei — have changed their calculus and are now more willing to conduct an attack in the United States in response to real or perceived U.S. actions that threaten the regime,” Clapper said in the testimony, which was submitted to the Senate Intelligence Committee in advance of a threat assessmen