Really liked this info on the subject so will pass it along: Link I printed it out and keep a copy handy. Kind of gives the impression that besides for a real nuke blast, most WMDs are terrorizing weapons with low probabilities for casualties. I've got 10 mil plastic sheeting and duct tape stashed in a safe room for the just in caseness of it, but it's mostly there to make my wife and kids feel better. Probably have a better chance of being abducted by aliens than being gassed. Would however take precautions for the possibilty of civil disorder following a dirty bomb or such. After hurricane Andrew the looters came out, and law enforcement couldn't get in due to blocked roads. A lot of folks had to guard what was left of their property with whatever weapons they had. Would expect similar difficulties due to gridlock on the roads in a WMD situation. Unfortunately, emergencies bring out the best and the worst of human nature. Regards, Keys