Gas Gang Chloroform, Carbon Monoxide, and Carbon Dioxide. Whereas the Metal Men were approximately the same size as Doctor Magnus, the Gas Gang were anywhere from one-third to twice his size. On Chloroform's initial attack, it caused the Metal Men to break out in fits of hysteria ala Nitrous Oxide (Laughing Gas) which Doc Magnus said was chloroform's initial effect. Before Lead could wall them off, Mercury literally "broke up laughing", opening Oxygen to attack and causing the Metal Men to begin to rust. During the chase Carbon Monoxide (called "CM" by Carbon Dioxide) attempted to poison them with fumes, while Carbon
Chemical terrorism nerve gas antidotes, and manuals on manufacturing chemical weapons, lending credence to the idea that the site was related to the manufacture of chemical weapons and poisons. "CNN" reported that during the Iraq War, al-Qaeda in Iraq launched a bombing campaign using chlorine gas from 21 October 2006 to June 2007, U.S. and Iraqi forces successfully destroyed much of al-Qaeda in Iraq's chemical weapons organisation. ISIS are believed to have obtained chemical weapon components from left over Ba'athist Iraq stockpiles and banned and undeclared chemical weapon stockpiles from Syria. The group is believed to have formed a special unit for