Planet Money did a story on this last year. http://www.npr.org/sections/money/2016/04/13/474135422/episode-695-put-a-chip-on-it http://www.npr.org/sections/mon

Planet Money did a story on this last year. http://www.npr.org/sections/money/2016/04/13/474135422/episode-695-put-a-chip-on-it http://www.npr.org/sections/money/2016/04/13/474135422/episo...