U.S. President Barack Obama, center, shakes hands with United Nations Secretary-General Ban Ki-moon after addressing the United Nations General Assembly at United Nations headquarters on Thursday, Sept. 23, 2010. Looking on at right is General Assembly President Joseph Deiss. (AP Photo/Henny Ray Abrams)

Photo by: Henny Ray Abrams

U.S. President Barack Obama, center, shakes hands with United Nations Secretary-General Ban Ki-moon after addressing the United Nations General Assembly at United Nations headquarters on Thursday, Sept. 23, 2010. Looking on at right is General Assembly President Joseph Deiss. (AP Photo/Henny Ray Abrams)