In order to reach David Andrew King's office on the third floor of Buell Hall, a beautiful old brick building nestled in the center of Columbia University's Morningside Heights campus, I take a Metro-North train from my home in Fairfield, Connecticut. The station is just a few miles south of where two trains collided in mid-May, injuring more than 70 people, some critically, and halting service on one of the country's busiest railroads for almost a week. Today, like most days, my train is delayed due to maintenance. My peak-hour one-way ticket cost $15.75, and it takes me an hour and 15 minutes to arrive at the Harlem-125th Street Station. "There's an old joke," King will tell me when I arrive. "Everybody's least favorite transit system is the one they rely on... More >>>