Originally Posted by
goalie
correct but to be clear...it has to be a leo and not a tsa employee as the tsa does not have that authority
Let's clarify that. A TSA employee can ask to see anything -- as can the guy standing in line after you. You, of course, are free to refuse to show it to either of them. The TSA screener can call for an LEO; so can the guy behind you -- the only difference being that the TSA screener can refuse to let you into the sterile area until the LEO shows up.
I may be wrong but I don't think the screener would ask to see the FinCen Form 105. He would call the LEO. Personally, if I had the FinCen Form 105 on me, and knew that I would be waiting for an LEO to arrive, I would probably offer it to the screener just to get through the whole process.