How A Little Lab In West Virginia Caught Volkswagen's Big Cheat

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After the EPA said it found wide variations in emissions from VW cars that use a "defeat device" to fool emissions tests, the company's stock tanked, its CEO quit, and it's setting aside billions of euros to fix 11 million cars. So who made the discovery that sent the German car giant into a tailspin? A group of scientists at West Virginia University.

أكثر... (http://www.npr.org/2015/09/24/443053672/how-a-little-lab-in-west-virginia-caught-volkswagens-big-cheat?utm_medium=RSS&utm_campaign=news)