happened. this is the override panel outside the cockpit to get in. this is the lock panel to lock the door from the inside. we know now something happened here. we don't know if the override was attempted. that's one thing we don't know. we also don't know the lock button was pushed. but we have to assume something happened because that's what the airline said. walk us through this, david. this is important. why does the five minutes matter? >> what happens here if the copilot -- they're saying the copilot intentionally did the lock. no matter what the pilot did, there's no door handle, no way to get in. he notifies the guy, i've got to get in. if the copilot decides he doesn't want him in, he clicks that down and has five inus of solitude, no one is going to come in at all. it's impossible. >> after that, how does the 30 seconds play in? >> how that works, if he wants to get in, he hits the button --