Planet Money had an interesting episode about him recently: http://www.npr.org/sections/money/2015/07/31/428157211/episode-643-the-taxi-king http://www.npr.org/

Planet Money had an interesting episode about him recently: http://www.npr.org/sections/money/2015/07/31/428157211/episode-643-the-taxi-king http://www.npr.org/sections/money/2015/07/31/428157211/episo...