What a chicken little festival we have going here Some folks are waaaaaaaaay overzealous about this stuff. No one is going to be 'locked in the flight deck'. The crews understand the risk, they are not fools, and the chance of someone leaping up and making it past a 3 or 4 crew members (not to mention the other passengers nearby) is just not measurable.

Even if someone gets into the flight deck, they are not going to get much done before a bunch of people get involved and that will be the end of it right there. If such a thing were to be attempted, I am going to place my bet on it being a disturbed person, and not a terrorist.

Let's not get too engrossed in hysterics. Measure risk and manage it.

Why are we still getting so bent out of shape over the flight deck door when cargo is not being screened, 5 years later?