Iran President Mahmoud Ahmadinejad poses June 20, 2012, for a photo at the United Nations conference on sustainable development, or Rio+20, in Rio de Janeiro. (Associated Press)

Photo by: Victor R. Caivano

Iran President Mahmoud Ahmadinejad poses June 20, 2012, for a photo at the United Nations conference on sustainable development, or Rio+20, in Rio de Janeiro. (Associated Press)