We move from the messages Metro is trying to send to the sorts of messages you might see as you're riding Metro, whizzing past those high concrete walls between Silver Spring and Rhode Island Avenue on the Red Line. In other words: graffiti. It's a common, and controversial, method of communication for young people in the District. Reporter Jonna McKone heads out with one young graffiti artist, to investigate this secret subculture.
[Music: "Graffiti" by Stereo MCs from Deep Down and Dirty]