Embry said he had no idea how close he'd come to uncovering Toyota's alleged secrets.

CNN: STORY HIGHLIGHTS

Biller defended Toyota in that rollover case, brought by Green's lawyer, Jeff Embry.

CNN: STORY HIGHLIGHTS

Chuck Eastlake, a professor of aerospace engineering at Embry-Riddle Aeronautical University in Florida, said the technology for the reinforcements seems to be relatively basic.

CNN: Airlines move swiftly to secure cockpits

But usually, the addition of alcohol to the mix is what tips the scales into rage territory, said Ronald Carr, assistant professor of aviation physiology at Embry-Riddle.

CNN: Air rage: Passengers 'quicker to snap'

His agent, Al Embry, said Domino's relatives and friends were concerned about his fate until Thursday evening, when one of his daughters, Karen Domino White, recognised him in a picture published by the New Orleans Times-Picayune.

BBC: NEWS | Entertainment | Domino 'shaken' by storm ordeal

We were both Trustees for Embry Riddle Aeronautical University, which Al strongly supported, and he was a true advocate for Business Aviation as the National Business Aviation Association launched its No Plane, No Gain program in the 1990s.

FORBES: He Brought Safety To The Skies

"More than 28, 000 flights take off each day in the United States, so if you look at the statistics, they're pretty small in relation to the big picture, " said Kees Rietsema, department chair of business administration at Embry-Riddle Aeronautical University.

CNN: Air rage: Passengers 'quicker to snap'

Friends who have known each other for decades, or siblings who get along well and are comfortable spending long periods of time with one another, would also be suitable for this sort of situation, said Jason Kring, assistant professor at Embry-Riddle Aeronautical University, who is not involved with the mission.

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