I watched this the other night. For those of you who haven't seen it, it's presented by a big bald ex-marine bloke with sunglasses and a film trailer voice. It is, of course, American. They were on about EMP weapons, and how EMP can disable any non-hardened electronic device.
They then described how this would cause chaos as vehicles and telecoms would cease to function. And they had a chat about how terrorists don't like America as a rule, and that they reckon the Russians have made and lost or sold a few of the weapons.
Then they got out the scary diagrams showing the areas that would be affected by an EMP weapon. With a detonation at an altitude of 300 miles, an EMP could affect the entire US!
Hang on a minute. Space starts at 60 miles up. And they're making out that some terrorist working out of his garden shed's going to get one to 300 miles? 😆
Of course, the fact that to get a decent EMP effect, you need a nuclear bomb was glossed over a bit.