Mahmoud Ahmadinejad, self-professed religious millenarian, and Hugo Chavez, Socialist atheist, share a few moments of confusion as they try to sort out the difference between Imam Mahdi, the 12th Imam and Messiah of Shiites, and Imam Reza, the 8th Imam who is buried in the Imam Reza Shrine in Mashhad, Iran. Ahmadinejad invited Chavez to come on a pilgrimage to Mashhad.