My guess is that it is more likely that radical Islamists would assassinate Arafat than the Israelis. What would they gain by having a moderate replaced by more radical elements? Arafat was willing to compromise, and that might have been his demise.
I was a pack and a half Marlboro red puffer for a little more than 40 years but never glowed in the dark as far as I know. I think I was only that high once.....and it's my understanding that the preferred method of assassination with little or no suspicion is ricin.