Iran reportedly activating sleeper cells abroad as Trump warns of US threat Fox News' Steve Harrigan reports on Iran activating sleeper cells globally and Iranians fleeing to Armenia amid intensifying Middle East conflict. National security and military analyst Dr. Rebecca Grant also provides her analysis. NEW You can now listen to Fox News articles! A dangerous dissident republican group, the New IRA—linked to Iran and Hezbollah—claimed responsibility Tuesday for a car bomb outside a Belfast