That's what the head of the United Nations' nuclear watchdog said Thursday while on a visit to the Islamic Republic.

As Pope Francis recovers from his severe illness, Director of the Center of Religion and Culture at Fordham University, David Gibson, tells Christiane Amanpour about why he believes Pope Francis is ...

Of the five Nuclear Weapon States, only two — the US and Russia — have reduced their stockpiles significantly.

Talks between Iran and the United States over Tehran’s rapidly advancing nuclear program are “in a very crucial” stage ...