US and Iran clash at UN over Iran's election as conference vice president.

The U.S. and Iran clashed at the UN on April 27 during the Nuclear Non-Proliferation Treaty conference. The U.S. criticized Iran’s election as a vice president, calling it an "affront" due to its lack of cooperation with the IAEA. Iran dismissed the criticism as politically driven, asserting its right to peaceful nuclear technology while accusing the U.S. of hypocrisy.