“...he told his college roommate at Stanford he wanted to woirk for the Mossad.”
Can’t imagine that roommate wasn’t questioned during the security clearance. Wonder why it wouldn’t have come up then?
When I was going thru clearance, in my mid- to late-20’s, they went back to my home town and interviewed high school friends’ parents! It seems a college roommate would know a LOT more about the subject’s thinking than a friend’s parents. Do they really think high school kids spend hours sitting around discussing politics and philosophy with adults?
My close friend in high school went into the Air Force and was going to be working near the nuclear missiles. I had to fill out a 5 page questionaire. This was back in the late 70’s. I believe they also came out questioned my father in person.