And yes, a well designed EMP device may not be visible.
I have worked extensively EMC (Electro Compatibility Testing). That means emissions compliance testing and immunity testing.
ALL of the electromagnetic sources that make electronics vulnerable are not visible (not in the visible spectrum). No doubt, weapons experts designing an EMP device will know this and target ALL of the energy (amplitude and wavelength) into destroying the electronic devices.
BTW, a lot of military equipment IS SHIELDED. I saw a test facility. Interesting. But there is still a limit to the shielding.
A optimal attack would be a one-two punch — first, with an emp device, second after millions of people are trapped in a city, an actual thermo-nuke that kills.
“And yes, a well designed EMP device may not be visible.”
Wow, our education system is really dumbed you down, hasn’t it? A non-visible nuclear detonation?? OK, if you say so. *snicker*
“And yes, a well designed EMP device may not be visible.”
There is no way to detonate a nuclear device in the atmosphere and conceal it.