OK, what the hell has happened to the Brits?

Michael Nouak wrote:

Simply become an air marshal. On the day you get the call from Osama,
simply board your flight, maybe with another air marshal. At the
appropriate time, get up, scream "US Marshal, freeze!" and shoot the other
marshal, or any random passenger if you're alone, in the head.

Sigh And I thought I was devious.

This doesn't even require knowing the other Marshal(s). They'll pop up
immediately.

This is an interesting problem. The solution to your scenario is to have
marshals all know about one another (at least on a single flight). But
that increases the risk of all marshals' identities being exposed at once
by a single security failure.

I have to admit: I'm glad I'm not in the business of formulating these
plans.

- Andrew