re: A flight attendant smashed wine bottles on a man who tried to open the exit midair, FBI sa

Your emergency exit doors are essentially plugs. They usually open to the inside.

Your main exit doors, which open to the outside, are also like plugs. They open to the outside, but they are designed to be treated like a plug after they are closed. Also, an inflatable seal can be used.

I'd still love to see somebody throw one open with the auto slide active.