SEATTLE--(BUSINESS WIRE)--(ATTORNEY ADVERTISING)— Keller Rohrback L.L.P., a leading national consumer law firm, is investigating allegations that automakers Volkswagen AG (ETR:VOW3), Audi AG (ETR:NSU), and Volkswagen Group of America (“Volkswagen”) used software in diesel vehicles to knowingly violate emissions standards. Yesterday, the EPA issued a Notice of Violation stating that Volkswagen allegedly designed and installed “defeat devices” to detect when a vehicle is undergoing official emiss