It's fun to make fun of, and basically it is another attempt at "guvmint" scare mongering in the style of the old "duck and cover" advice after WWII in the 50's. They want you "sheeple" to think that Nuclear, Biological and Chemical (NBC) Warfare can be controlled with a good supply of 4-mil polyethylene sheeting and some "home defense grade" $1.33-a-roll made-in-China Wal-Mart duct tape. Well, they may have a point, but if you follow their advice in a real attack, you will probably not survive.

If you want to survive an NBC attack, I will advise you to buy several military-grade radiation dosimeters and a solid state radiation survey meter. Do not buy a Geiger Counter, as romantic as a Geiger counter is with its little clicks and clacks of detecting radioisotopes. They are neat in movies, but are useless in a massive radiation situation when they become saturated, and will give false readings of normal background radiation when it is actually way too "hot" to be around. They will kill you if you don't know how to use them. Homeland Defense - Radiation Detection