Diplomats told the Associated Press this morning that the United States has shared information with the International Atomic Energy Agency showing Tehran was trying to make a nuclear weapon. The United States is allowing the IAEA to show some of the evidence to Iran to pressure the Islamic republic into admitting it had focused some of its nuclear efforts on developing weapons. more >>

But Tehran stays defiant, and U.N. diplomacy is falling short. more >>

Tehran's signs of cooperation with nuclear inspectors set back U.S. sanctions effort. more >>