One nuclear blast over Kansas, 300 miles above round is all it would take. Pow...we’re back in the Stone Age.
Funny...Iran has practiced firing missles off the back of cargo ships in the Caspian Sea...and then detonating the missles at their apex. And, then claiming the launches were successful.
Now, all Iran needs is a nuclear weapon...uh...never mind.
If we had a REAL president, just a threat from Iran would evoke a Trident sub turning Iran into a nuclear parking lot - end of problem.