It would take out a BUNCH of satellites. No GPS. (No DirecTV.) The military and the rest of us rely heavily on satellite communications these days.
Some power disruptions would be a big problem for city folks and the unprepared.
EMP would certainly be part of an assault against CONUS, but I can’t imagine who would have the balls to start something like that. I know that our nukes are EMP-hardened, so the counterstrike would be massive.
In any case, it pays to be prepared with good stores and self-defense options.
Which in turn would trigger the return of the 12th (hidden) Imam...
They're crazy enough to believe it, and crazy enough to try it.
“but I cant imagine who would have the balls to start something like that”
not really a question of balls. Did it take balls to fly into the twin towers?