Nuke Over U.S. Could Unleash Electromagnetic Tsunami

This is from an Iranian political military policy journal:

Once you confuse the enemy communication network, you can also disrupt the work of the enemy command and decision making center.
Even worse, today when you disable a country's military high command through disruption of communications you will, in effect, disrupt all the affairs of that country. . . . If the world's industrial countries fail to devise effective ways to defend themselves against dangerous electronic assaults, then they will disintegrate within a few years. . . . American soldiers would not be able to find food to eat nor would they be able to fire a single shot.