Elsewhere, it is true that there are no assurances that you won’t get hit by a bus tomorrow and get killed, but do you routinely go out and play on the freeway?
So according to your way of thought, we should avoid high rises, driving cars, or anything else that may increase the chance of death. I really question your motives for this post. You claim that it is out of sincerity and you would hate to see all these people die. However, if this is the case, shouldn't you be on a tirade against contributors to heart disease as most JWs probably stand a greater chance of dying from that than a terrorist bombing. You claim to be worried that something like this might have a drastic effect on the rest of society. Yet you know very well that even if your fear inducing post stopped some from attending, it certainly wouldn't stop the assemblies from happening. So your post does not serve your claimed motive.
I don't understand why you wrote your original post. I understand even less how people could reply in a sarcastic way, making light of real tragedies and death.
Why would you even propagate possible means of destruction, naming things like spreading Hanta through skin contact? So we can all go buy Anti-Hanta lotion?
On a seperate note, a lot of posters mentioned the lack of security. I think this may be wrong. Most trade shows and events I've been to, at most, have apathetic hired security guards. They are usually trained to call the police and detain suspects. At JW assemblies they usually have a massive body of volunteers who are constantly roaming the grounds looking for suspects and have efficient means to contact the police and detain people. Although they might be window washers, I think it works in their favor as these men are usually very eager to some "action" and take their jobs very seriously. I mean, come on, they can't be Police Officers or Soldiers so this is as close as they can get!