Secrets of New York City's Subway

At its debut in 1904, the New York subway impressed the world. Here are the stories of the people who made the dream of the subway a reality, including one unlucky laborer who was shot unceremoniously out of the subway tunnel and into the harbor by a sudden change in air pressure! Today, New Yorkers may grumble about the subway or simply take it for granted. Here's a look at the way it transformed the city. Guest: John Morris, author of "Subway: The Curiosities, Secrets, and Unofficial History of the New York City Transit System"