Well, that is true. But, one or two EM waves from a aerially detonated device of some particular type, and our entire power grid, our entire satellite management system, and nearly our entire information network would be wiped out...and our military and ciivlian world would be sent back to the 2nd century. In a very weird twist, we'd be in the situation in which the Afghan tribal people would be more "advanced" than us.
Remember a few years ago when our cellphone satellites went on the blink and nobody could communicate very well? Guess what, that wasn't an accident. That was another country "testing the waters" to see what our vulnerabilities are.