Well the next time politicians try to reduce the defense budget, remember we need those submarines lurking undetected in the oceans!
This article is scary, but I don't think that $400 device could have much range. With the missiles the U.S has they can theoretically blanket a whole nation. Plus I beleive they have to be detonated in the air to be effective. Our military has known of this for a while and has taken measures to protect electronics from EMP's (I hope). Still scary nonetheless when you consider that virtually everyone in the U.S., whether that person own sa PC or not, probably uses a computer daily. Cash registers, fuel pumps, traffic signals, etc. etc. Imagine if all of a sudden these were rendered useless.