What I learned watching this movie
It is necessary to specify to an air traffic controller in Miami that you work with the CDC in Atlanta, GEORGIA. As opposed to the CDC in Atlanta, Nebraska? Because people in Miami aren't aware that there's an Atlanta in the state just north of theirs?
The multiple redundancies built into airplane systems fail when ants eat through a few wires.
In other news, ants eat wires.
Air traffic controllers at minor airports in Miami are in direct contact with the top secret government committee that actually runs things. Information about underwear bombers gets stalled in the communications chain, but alerts about ant emergencies zip right up to the secret committee.
If a plane represents a major danger to the US and is forbidden from entering US airspace, no Air Force or Navy jet will be sent to tail it and shoot it down if it attempts to enter US airspace.
All it takes to repair a complex and sensitive electro-mechanical system is a good whack. Even if the system is full of highly volatile and explosive jet fuel.
Locking your friend in the lavatory to die is no big deal. You'll remain calm and even laugh and chat with your fellow passengers afterward.