take quite a while to get sorted back out. >> yeah, that makes sense and i wasn't aware of the passengers on the ramp area. thank you for that information you're bringing to the conversation. john, jim cavanaugh mentioned the security of the cockpit doors now on airplanes. i seem to recall that was something that was put into effect in the wake of 9/11. but are they all impenetrable by a gun if a gun were able to get on board a plane, which, again, to jim's point, he's made this as a really positive story in that this was stopped. nobody has been injured. there's no employees or passengers that are at risk now. so that's the silver lining of this incident. but is there gun or bullets, weaponry, ammunition that could penetrate a cockpit door? >> the doors have been hardened in the wake of 9/11, and that's true on all airliners today. so, the -- they are designed to