> Surprised the cab to the airport didn't "break down" (or blow up) or he didn't get mugged on his way to the airport.
He's in no danger of being assassinated. There wouldn't be any point.
Killing him to "make an example of him" doesn't make sense. Killing him with plausible deniability wouldn't send a message and killing him openly would just would just make the CIA look bad.
However the US government can, publicly and openly, make his life very difficult.