Iran suspends cooperation with UN nuclear watchdog

NBC News chief foreign correspondent Richard Richard Engel has made his way to Tran and filed this report for us. I'm now in one of the biggest boss in South Tran. And the reason I'm here is there is currently a religious festival going on in the city in this country all across the Shia Muslim world to honor and mourn a Shia martyr who was killed 1400 years ago.And this year it has a a special resonance because of the recent war between Israel and Iran. In fact, these are some of the nuclear scientists who ...