Israel's "Iron Dome" missile defense system proved itself best of breed in the recent November conflict between Israel and Hamas. But where does that leave Raytheon (NYSE:RTN), owner of the now second-best Patriot missile defense system? What does it mean going forward for companies like Lockheed Martin (NYSE:LMT), Boeing (NYSE:BA), and Northrop Grumman (NYSE:NOC), all of which are working on laser-based missile defense systems? Listen in, as Fool contributor Rich Smith explains.