States Issue Subpoena In VW Investigation

from CBS Dallas / Fort Worth
Logo of German car maker Volkswagen (VW) is pictured on a VW car during the shareholders' annual general meeting of VW in Hanover, central Germany, on May 5, 2015. German auto giant Volkswagen held its first ordinary shareholders' annual general meeting since a bitter power struggle at the top of the company led to the resignation of VW patriarch Ferdinand Piech as supervisory board head.  (Photo credit: JOHN MACDOUGALL/AFP/Getty Images)States launched an investigation after the automaker admitted to rigging emissions technology.