ensuring outside threats aren t able to make their way inside to a secure area. inside to tan airport. or presumably you expect everyone in the secure space has been screened, physically, or, you know has gone through, lengthy background investigation. if you break it down into employees and passengers. every passenger aboard a commercial air skraflt will undergo some type of screening for devices, weapons and that physical screening. employees as well. psychological, mechanic would be less so than a pilot. some one able to pie lot an aircraft with souls on board. none theless it would be involved in a thorough background investigation. if you are a, seattle tacoma police officer there at the airport. you know it is not necessarily, front of mind that you are worried that shomone thome one d is going to go rogue. if that happens, very little you can do. this case does pose an interesting challenge. talking to someone there on the ground. locally in washington state.