Do they still do the same?
I remember that on that list were even organizations like the John Birch Society. !!
When I was being evaluated for a security clearance at Whiteman AFB, Missouri in 1974, I was asked about an assignment I had completed in the 8th Grade (!!!), a report on the American labor movement. My answer was simply, that if I remembered correctly, that is what I was assigned, that's all, it was not a subject of my choice or my own interest. No other questions were asked.
Do military authorities still go back that far in people's lives when evaluating people for sensitive positions?
I don’t know if they still do it.
I remember similar questions as yours as well but I got out in the early 70’s