The Gangs of Chinatown

New York City's Chinatown is known for its restaurants, shops and festivals, but what about gang violence? Rewind to the turn of the 20th century and you'll find the neighborhood was riddled with it. On this week's Cityscape, we're talking with Scott Seligman, author of Tong Wars: The Untold Story of Vice, Money and Murder in New York's Chinatown.