A drone strike authorized by US President Donald Trump killed Iran's top security and intelligence commander, Maj. Gen. Qasim Suleimani. Who was Suleimani, and why is this such a momentous, and controversial, move? Also, Iranians are in a state of shock, wondering how their country might respond and fearing where this might lead. And, we'll bring you the view from Iraq. Iraqis have been incensed recently about being caught in the middle of a proxy battle between the US and Iran. The killing of Suleimani escalates that feeling of vulnerability significantly.