I am not sure but I would assume the detonation of one device would have a destructive impact on a given sized area. And where ever it is would be in complete and utter shut down/disaster. The terrorists would have to deploy several to end life here in the USA as we know it. Perhaps someday they could have a capability comparable to that of the USA, the old USSR, China.

I also subscribe to the theory that when terrorists take aim at the USA they are in fact taking aim at the rest of the world.

I really believe half their battle is won simply by instilling fear in all of us.

I think it really may be more of a Buck Rogers concept at this stage in man's self destructive evolution...we hope any way.

As for the name callers they have earned the status of "consider the source", hence zero effect....only their self satisfaction which has been demonstrated to be rather a low threshold to accomplish!

btk