Not likely but that doesn't stop the feds from pooring all sorts of money into different areas. Some have used it to buy things to improve police and fire prostections. Others have bought gas masks. The question is whether the masks are readily available because - if the training I got in the Army was accurate - there will only be seconds for those in an effected area to react. If the masks are stored in a wharehouse or they are locked in the trunk of the police car (I've not seen officers with them strapped to their waists) they aren't going to help with anything.