I've worked as a civilian doctor on a military base, so I had to fill out an SF-85 at one point. This is a form for people who work in positions of public trust. It cleared me for handling sensitive health info but not anything classified. So, lowest level tell-your-life-story-and-pee-in-a-cup kinda situation. But intense.
Anybody, whether they've done that or not, can sit here and tick off how many times over they'd be in jail if they did the stuff in this article.