Delta Airlines: How a Swiss Watch-Like System Keeps Flights Running on Time

It’s an unnatural activity that has become normal. You’re stuck in a metal tube with hundreds of strangers (and strange smells), defying gravity and racing through the sky.  But oh, the places you’ll go! We visit the world’s busiest airport to see how it all comes together. (Part 1 of “Freakonomics Radio Takes to the Skies.”)