Josh Rogin has the whole of the secret State Department cable on poison gas in Syria at The Cable blog at Foreign Policy.
Even an attempt to destroy a chemical-weapons dump may be disastrous, if the poison gas is released into the atmosphere.
The Assad regime in Syria has carried out a horrifying crime, killing 1,400 noncombatants with poison gas.
poison gas n.
A gas or vapor used especially in chemical warfare to injure, disable, or kill upon inhalation or contact.