I read somewhere today that the PA has arrested a couple dozen people from the group that claimed responsibility for the assassination the other day.
I think Arafat is smarter than people think and knows what his countrymen are about to put themselves through. I also think that he is not in control of his government if you can call it that. I'd be scared if I was him, I'm sure he has people on both sides trying/wanting to kill him. I bet his days on terra firma are numbered....