Name Checks
There are over 100 million cases in the FBI's Universal Index. The most obvious people who are in the Name Check database include people with passports, green cards, vias, government employees, bar admissions, etc. Other people who are in the index are people who were being investigated, those involved with counterintelligence and counterterrorism, and so many more.
There's a huge chance that your name is in the database, but that's not really a bad thing. The name check program also helps people get into events. It really just makes sure that this person isn't on a watch list!