Excuse me for not following the conversation before posting. I just saw that statement and wanted to comment on it.
I believe the Israelies are much too clever to be caught napping. Indeed, some Arabs may launch such a nuke but its pathway would be duly noted and Israel would counterlaunch nukes to totally destroy the country of origin. They may decide to take out the rest of the Middle East at the same time. I've read that they have the capability to do just that.