If we are dealing with an EMP, that means someone fired off a nuke over our country.
Methinks we might have bigger things to worry about then.
The major "bigger thing" is identifying the attacker and retaliating. Even third worlders like North Korea are launching satellites, of which there are so many it is difficult to keep track of their origin. We'd be likely to reflexively hit Russia or China, which would result in TEOTWAWKI. An undesirable result.