Changes

* Scientists and engineers have been designing autonomous vehicles since the mid-1960s, but crucial innovation happened in 2004 when the Pentagon’s research arm began its Grand Challenge. [http://www.nytimes.com/2010/10/10/science/10google.html?_r=2&partner=rss&emc=rss&pagewanted=all]

* Scientists and engineers have been designing autonomous vehicles since the mid-1960s, but crucial innovation happened in 2004 when the Pentagon’s research arm began its Grand Challenge. [http://www.nytimes.com/2010/10/10/science/10google.html?_r=2&partner=rss&emc=rss&pagewanted=all]