In an incident reportedly stemming from a feud between rap stars 50 Cent and the Game, a man was shot and wounded Monday just outside a top hip-hop radio station in New York City. It's the latest in a slew of violent clashes involving rappers over the years. Who should be held accountable? NPR's Ed Gordon discusses the issue with Kenard Gibbs, president of Vibe magazine, and Adisa Banjoko, author of Lyrical Swords Vol. 1: Hip Hop and Politics in the Mix.