I was flying from DEN recently...
TSA came along for the gate checks. This gate had an area that was segregated for inspections. In this case, they were pulling people out of line for thorough pat-downs.

After the pat-downs, they
forced people to stay within this segregated area.


One person tried to leave and was coerced by TSA to stay withing the inspection area. Since the flight wasn't ready to leave (about 10 min.), these people, IMO, were being detained unlawfully by TSA. FWIW, there was no LEO in sight.
Has anyone else seen this?
Do any of our resident legal beagles have thoughts on the legality of this approach?