EMP protection for WTSHTF

EMP is a wide spectrum short duration radio pulse generated most famously by a nuclear detonation in the atmosphere. Any conductive object is an antenna, radio waves resonating in a conductor create an electrical field and voltage and amperage are generated, just like your crystal radio set made enough electricity to actuate the earphone from the radio/electrical resonance of your long wire antenna. What is at risk? Anything with a run of metal can couple a voltage spike when exposed to EMP, simple electrical motors and radio tubes are unaffected by EMP just like static electricity would not do them any damage. The most vulnerable devices are those connected to a wire, both the power cable and the antenna both couple EMP, in fact the power cable is connected to the grid which acts as a giant antenna. What can we do? There are two options for most people: shield or divert the EMP. Shielding can be complex like wallpapering the walls, ceiling, floor, windows, and door with metal screen and grounding it making a Faraday cage.