The newest wave of troops hitting the Afghan battlefields are 19 or 20 years old, meaning they were roughly between 8 and 10 when al Qaeda crashed planes into the World Trade Center, Pentagon and a Pennsylvania field.

WSJ: When the Troops Were Very Young

The two planes crashed to the ground approximately a mile apart from one another, state police said.

CNN: STORY HIGHLIGHTS

But it, like every other low-cost operator, is only too aware of the fate that befell an American airline, ValuJet, which went out of business after one of its planes crashed in a Florida swamp in May 1996 killing all 110 people on board.

ECONOMIST: The price of flying on a low-cost airline

Those numbers don't include the 157 people aboard both planes that crashed into the towers.

CNN: Recovery: More layoffs in the air

Three times, he nearly boarded three planes that crashed.

NPR: Musharraf Denies Pakistan Is Harboring Taliban

Flight 93, the last of the four hijacked planes, crashed in rural Pennsylvania after passengers and flight crew members -- alerted via cell phone conversations about the fates of the other three planes -- rebelled against the hijackers.

CNN: Hanjour