When I got my Top Secret Clearance for the USAF SAC in 72 the FBI interview my 1st grade teacher and the mothers of every girl I dated. As a teen. Now the give out social clearances.
When my schoolmate was getting TSC the FBI tracked me down 20 miles into the woods, no roads, on a mountain to ask me everything about him. When I got mine, the govt gave me a free pass coz they evidently checked me out too same time...