Syria's chemical-weapons arsenal has rightly galvanised international attention. The chemical attacks have prompted Russia and the United States to put aside diplomatic tensions to devise a plan to eliminate the Syrian regime's stockpiles. And the Organisation for the Prohibition of Chemical Weapons (OPCW), which is executing the Russian-US plan, has just been awarded this year's Nobel Peace Prize.
Obviously, the dangers that such weapons pose do not end in Syria. In addition to the possibility of governments launching chemical attacks against their own people, there is the risk of terrorists using toxic agents, as they did in Iraq in 2007. Indeed, for both state and non-state actors, chemical arms are the easiest weapons of mass destruction to create, acquire and use, owing partly to their ingredients' widespread availability.
Many countries possess industries capable of manufacturing large quantities of such chemicals, and terrorists have proved that they, too, have the resources to produce and use dangerous chemical agents. Chemical attacks are attractive not only for their lethality, but also because they can have a major psychological impact on survivors and others.