I have a personal friend who is the Chief of Staff to a Congressman in the
US House, and I sent him that article. Here is his response:
" Thanks for the article links and info Del. As far as the item, the Congressman sits
on the Aviation Subcommittee which has oversight of TSA. As you know, we
travel back and forth to NM quite a bit and I have a friend that's in management
at the air marshals. They have quite a bit of leniency on attire and are encouraged
to mix and match appearance. One of the games I play every flight is spotting
the marshals. From attire and behavior its almost impossible, but the manner in
which they check in (particularly heading into Reagan National) is usually what gives
them away to me as they have to present their credentials.
Anyway, if its any consolation, the story is way off line, but careful observation still allows them to be ID'd."