Okay, lets get this thread back on track.
My idea of a weapon of the future..
Tactical E.M.P. Bomb
Imagine if you could drop a bomb that could destroy all electrical circuits within a 10 mile radius.
As far as I am aware an Elecromagnetic pulse is harmless to humans, but renders all cars, tanks, jets, choppers, etc, completely useless. You could take out an armys hardware without killing anyone.
A more scientific explanation can be found
here
Maybe it is a fantasy weapon, but it is within the realms of possibilty.
Are the next generation of weapons going to be about killing faster, or stopping your opponent from even getting into the fight.
P.S. Sorry I just realised the link is about the effect of an EMP during an atomic blast. I have read of machines that can duplicate this without the mushroom cloud.