Somewhat ironic that this comes up today. During a late lunch today I was watching "Around The Services" (a DoD news show normally on AFN) on the Military Channel. One of the topics was the Northern Command and the first of 8 brigades that have been trained up for service inside the United States as needed. It was stated that the reasoning for these brigades was in the event of an CRBN (Chemical, Radiological, Biological, Nuclear) accident or attack.
When I was in the Army during Gulf War 1, my greatest fear was chemical attack. Having seen the training films and learned about the antidotes and its side effects, I formed my own antidote plan. 12Ga. self-administered antidote.
The masks and crap that will sell, will either be expired, damaged or just plain crap. Even if it is any good, does it fit? Do you actually know how to use it? Can you evacuate in time before the filter goes bad? Can you even operate w/o training with all that stuff on. Answer to all of the above . . . Not Likely.
And yes, it was mentioned in the recent past. Late September 2001.