Kenneth Timmerman, author of "Countdown to Crisis: The Coming Nuclear Showdown with Iran," offers a chilling account of Iran’s complicity in the 9-11 attack on the World Trade Center; of its clandestine nuclear weapons program that could already include enough nuclear materials for 20-25 bombs; its current sheltering of Osama bin Laden; and its on-going financing of the insurgents in Iraq. Timmerman also takes the CIA to task for its “willful blindness and incompetence” in evaluating the theocratic Iranian regime’s motives and actions. Among Mr. Timmerman’s sources are former high-level Iranian intelligence officials who have defected and previously classified documents.