I might respectfully reply that there *are* rogue nations that have semi reliable rockets and small nukes... just the thing for EMP. No real damage to the ground or people, just electronics and corneas of the unlucky souls that happen to be looking at the wrong spot and the wrong time...
Only rogue nation with nukes is N. Korea. Largest demonstrated yield: 7kt. Not much EMP more than 5 or 10 miles. Small bomb = small EMP. And EMP suffers from LOS and ground attenuation issues just like RF above UHF.