There are some differences -- we generally choose the doctor and doctor's office we go to, and can relatively easily say no if we find we are uncomfortable with

There are some differences -- we generally choose the doctor and doctor's office we go to, and can relatively easily say no if we find we are uncomfortable with the particular person. Doctors and nurses are fairly highly trained and have a lot more to lose if they violate professional ethics. On the other hand TSA-trained people have often been involved in drug smuggling, luggage stealing, and more.