> That sounds like something different (or maybe the airline lets random people into TSA Pre-check?). It is not something different, but I think some airlines

> That sounds like something different (or maybe the airline lets random people into TSA Pre-check?). It is not something different, but I think some airlines do automatically sign some of their clients up for pre-check, particularly if those clients have status. E.g., United Airline's pre-check information page discusses people who have opted-in through their frequent-flier program: https://www.united.com/web/en-US/content/travel/airport/tsa-precheck.aspx https://www.united.com/web/en-US/content/travel/airport/tsa-...