“In the United States, as attorneys general across the country opened investigations, Dan Becker, director of the safe climate campaign at the Center for Auto Safety, said the country also needed to rethink how emissions were tested. Independent testing has shown a widening gap between results in laboratories and the real world, raising suspicion.“The automakers have proven that they’re not trustworthy,” Mr. Becker said. “The government has to overhaul the testing to make sure that independent parties ensure that the cars that are put on the road pollute less and are safe.” ”
Source: After Volkswagen Revelation, Auto Emissions Tests Come Under Global Scrutiny – The New York Times