Bashar al-Assad has agreed to a Russian proposal to hand over his stockpile of chemical weapons.The move comes on the same day that President Barack Obama will give an address on the potential for U.S. involvement in Syria. Syria Deeply asked Aram Nerguizian, a senior fellow with the Arleigh A. Burke Chair in Strategy at the Center for Strategic and International Studies, to weigh in on the potential success of a weapons-gathering mission.