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Iranian President Mahmoud Ahmadinejad speaks during the 66th session of the General Assembly at United Nations headquarters Wednesday, Sept. 22, 2011. (AP Photo/Seth Wenig)

Iranian President Mahmoud Ahmadinejad speaks during the 66th session of the General Assembly at United Nations headquarters Wednesday, Sept. 22, 2011. (AP Photo/Seth Wenig)

Iran leader's U.N. visit sparks protests, walkout

Thousands protest against Iranian President Ahmadinejad's visit to the U.N. His speech sparked a walkout by Western delegates.