Volkswagen comes clean on emissions cheating

Aired: 9/22/2015 | 0:07:07 | Clip
German automaker Volkswagen has revealed that as many as 11 million of its diesel-powered cars worldwide could be affected by software designed to dupe emissions tests. The software, which only switches on during emissions tests, leaves the cars emitting up to 40 times the legal pollution limits. Judy Woodruff speaks to John Stoll of The Wall Street Journal.