Nation

Follow PBS NewsHour’s complete coverage of U.S. news, reports and analysis.

How did Volkswagen get caught rigging the emissions software of its diesel vehicles? William Brangham talks with John German of the International Council on Clean Transportation, one of the engineers who helped catch the automaker.

Chief foreign affairs correspondent Margaret Warner, reporting from the UN, talks with Judy Woodruff about what came out of an anti-Islamic State meeting among world leaders at the United Nations General Assembly and a meeting between President Obama and Russian…