Top U.S. Volkswagen Exec Admits He Knew About Rigged Emissions Technology for 18 Months By Notable Life By Notable LifeView Author|October 8, 2015| Honestly, at this point we'd be more surprised if one of Volkswagen's top execs didn't know about the rigged technology installed in over 10 million diesel vehicles to make them appear a lot cleaner than they really were. Yet news today that... View this article.