Fereidoun Abbasi-Davani, Iran's nuclear chief, delivers a speech on Monday, Sept. 17, 2012, at the general conference of the International Atomic Energy Agency at the International Center in Vienna, Austria. (Associated Press)

Photo by: Ronald Zak

Fereidoun Abbasi-Davani, Iran's nuclear chief, delivers a speech on Monday, Sept. 17, 2012, at the general conference of the International Atomic Energy Agency at the International Center in Vienna, Austria. (Associated Press)