A hypothetical version of myself may have worked in an International Airport as a security lead. That hypothetical version would have to pass through general passenger TSA and Border checkpoint dozens of times a day. They also may have always been carrying dab pens on him and his coworkers might have on several occasions just carried handguns through that they might have forgotten on their persons.
Yeah Airports are to security as Ant traps are to an exterminator. Lotta smoke and mirrors. Most cameras are non functioning or just straight up not wired in the first place.