While aeronautic design has come far since the advent of the passenger jet plane, making them lighter and more efficient, many designers feel that we've gone about as far as we can go with cigar-shaped fuselages and under-wing engines.

BBC: The futurist: Will green aeroplanes take off?

At least one of the suspected hijackers who intentionally crashed a passenger jet September 11 purchased his plane ticket from a travel agent in a northern New Jersey town near where the alleged ringleader of the attacks was spotted this summer.

CNN: Investigation: Ashcroft warns of newest threat

Singapore Airlines said it will buy 30 Boeing 787-10X aircraft, the third variant of the plane maker's newest and most technologically advanced passenger jet, subject to Boeing formally launching the model.

WSJ: Boeing Gets Orders for Stretched Dreamliner

And the fireman never responded, but the guy in front of us said that if it had been a passenger plane" -- meaning a full-size jet like the one that had, in fact, crashed into the building -- "we'd all be down.

CNN: We the living: One company that made it