“If a nuclear weapon was detonated about 30 kilometers above the U.S., we could have a blackout of up to a year in an area that could range about a third of the country,” Gordon said.

Millions of people would die from that, according to Gordon, yet, we are very unprepared for that in the United States, unfortunately.

“What we have to do in this country is harden the electrical grid,” he said. “We have to build in redundancies … to prevent a catastrophic meltdown of the grid.”

Gordon said imagine what happened with just Hurricane Sandy, which he said would be not even a fraction of what an EMP attack would do.

http://voiceofrussia.com/us/2014_04_12/Analyst-EMP-Attack-Would-Cripple-U-S-3827/