Iran Must Be Stopped from Getting the Bomb

Thomas Sowell thinks so. He agues that if Iran gets nuclear weapons, it will turn them over to terrorists, and then terrorists will have nuclear arms and we will be at their mercy. Therefore, the only policy to follow is to stop Iran from getting nuclear arms, at any cost. Iran could not win a nuclear war with the U.S. Would Iran risk nuclear annihilation to send a few bombs our way? Would terrorists be able to smuggle a weapon over the border and deliver it? Here is an issue I would like to hear the Presidential candidates discuss during the debates.