Maybe start air-dropping the "Summer Days (and Summer Nights!!)" album over ISIS territory and voilá; problem solved and they will also love all the california girls.
I wish the media and everyone would drop the word ISIS in favour of ISIL (Islamic State of Iraq and the Levant). There are at least 2500 females called Isis in the Netherlands who are suffering because of the connection with these zombies. To say nothing of the Egyptian goddess of that name----with a bit of luck she'll come back and slaughter the lot...
A dark day indeed. Those poor travellers...