When polled, Arabs regularly agree with this proposition: It would be a good thing if there was a nuclear exchange where 50 million Arabs died, but Israel was destroyed forever.
So forget about threatening cities to deter fanatical jihadists.
They only care about one thing: the black moon-god ka'aba rock in Mecca.
Devout Muslims believe that Allah would stop infidel missiles in space from damaging the black moon-god rock.
BUT, if the moon rock WAS craterized, this would constitute final proof to them that their Allah was NOT greater (Allahu Akbar means "our God is greater.)
The craterizing of Mecca would mean the end of Islam in a short period of time.
But allahu Fubar means "their god is f'd up beyond all repair"!
Mecca must be nuked. islam must be destroyed