[freebilly]

Now if the guard didn't accidentally shoot himself and concoct this story, a terrorist would probably be more interested in the components making up the polymers than the polymers themselves.

He was confronted in sight of the ammonia tank. Ammonia is very very nasssssssty stuff.

[mylife]

There could be lots of possibilities. I dont know what you can do with the stuff, but platique explosives crossed my mind

[Humidston]

Many years ago Houston had an ammonia truck explode on one of our interchanges in a densely populated area. It was horrible. I'd hate to picture an entire BASF tank blowing!