In my opinion, a nuke will be used to trigger a Electromagnetic pulse device over the United States. An electromagnetic pulse weapon detonated 300 miles above Kansas would affect most of the U.S. It is known that China is developing such a weapon and will give that technology to Iran.
I agree.The EMP attack will be precede the first strike.The Electro Magnetic Pulse will radiate out across North America and Western Europe, collecting on power transmission lines and communication antennas. For a fraction of a second, the EMP spikes the power grid and receiving antennas with a huge surge of voltage.