Why it’s so hard to keep America’s public transit riders safe

The tragic fatal stabbing of a young woman on a Charlotte light rail train sheds light on the challenges of keeping America’s public transportation riders safe on vast, crowded and wide-open systems that fuel urban life.

​ The tragic fatal stabbing of a young woman on a Charlotte light rail train sheds light on the challenges of keeping America’s public transportation riders safe on vast, crowded and wide-open systems that fuel urban life. Read More Breaking News, Latest News and Videos | CNN