[This version includes some materials cut from the published National Review version.] "Here are two brother countries, united like a single fist," said socialist Hugo Chávez during a visit to Tehran last November, celebrating his alliance with Islamist Mahmoud Ahmadinejad. Che Guevara's son Camilo, who also visited Tehran last year, declared that his father would have "supported the country in its current struggle against the United States." They followed in the footsteps of Fidel Castro, who in a 2001 visit told his hosts that "Iran and Cuba, in cooperation with each other, can bring America to its knees." For his...