The crumbling regime of Syrian strongman Bashar Assad controls one of the largest chemical-weapons programs on earth, including mustard gas, sarin and VX nerve agent. Syria has mated these weapons with artillery shells and missilery. Open-source materials indicate that Syria has five major chemical-manufacturing facilities in and around the cities of Hama, Homs and Al-Safira, along with 45 chemical-weapons storage facilities. As Assad and his loyalists focus on survival and the Syrian military splinters, these stockpiles are growing increasingly vulnerable.