I went into the Navy when I was 17 and held a high-level clearance for the vast majority of my 31 years. Then I continued for my 14-year civilian career. When I finally retired at 63, I was very happy to turn in my badge, get debriefed and walk out the door for good. Frankly, at that point, I was tired of the whole business including worrying about the possibility of my subordinates getting sloppy in the way they handled things. I also had a couple of seniors that I clashed with when they got sloppy.
But thankfully, I never had anyone pull a stunt like this kid. I have contemplated whether I would have been able to prevent it and have concluded that it would have been nearly impossible. The aftermath will be pure hell for anyone in his chain of command.
I also don't miss all the hassle associated with having a clearance: the random polygraphs, the frequent "pee in a bottle" episodes, all the briefings, all the paperwork, and all the other stuff. While much of it was interesting, I am so glad to be away from that rodeo.