Bob O'Hara helped create the wireless networking protocol that you probably use every day. He is unimpeachable as a technology expert, but today we're having an experimental conversation on a very polarizing topic: gun control. This is an effort to resist the dynamic of polarizing online social media. What does it take for two very different technology people - one a San Francisco liberal, the other an Arizona gun enthusiast - to have a conversation about gun control without devolving into a typical online shouting match?