Now Playing: 05-09-12 Marketplace Tech Report

The roads of Nevada are going to be filling up with more cars -- but not as many drivers. After extensive testing, Nevada has approved Google's application to test driverless cars on public streets. So why go driverless? It could be safer -- no worrying about distractions -- and it could help traffic, too. Also, a new vacuum from Sharp makes us feel like we're in "The Jetsons."