Washington - Former Vice President Dick Cheney will say Tuesday that President Barack Obama is responsible for directly equipping Iran with the capability to destroy the United States, calling the negotiated nuclear deal "madness." In a fiery speech to be delivered Tuesday at the American Enterprise Institute, the Republican security hawk will unleash an aggressive attack against the Iran deal, which Congress will begin debating this week. "This agreement will give Iran the means to launch a nuclear attack on the U.S. homeland," Cheney will say, according to excerpts provided to CNN. "I know of no nation in history that...