When country is on edge , some moron had to play prank.
It's common knowledge among Americans that impersonating a police officer is not taken lightly not to mention falsely claiming you're ‘air marshals.’ on a flight.
They are either the BIGGEST American morons of the nation or they are foreigners ignorant of such laws and up to no good. I'd bet on the latter.
I think the ragheads are probing for weaknesses.