'Time Is Not Unlimited,' Obama Warns Iran at UN

UNITED NATIONS — President Obama told world leaders that time for diplomacy to curb the looming Iranian nuclear crisis is running out, in a speech he delivered on Tuesday to the United Nations General Assembly. - 'Time Is Not Unlimited,' Obama Warns Iran at UN -
Obama’s Speech to the United Nations General Assembly — Text
UN Leader Opens General Assembly on Somber Note - nytimes