In the first half of this year, China exported over two million vehicles, surpassing Japan and Germany to become the world's largest auto exporter for the first time. China’s auto exports expanded on the increased sales of new energy vehicles, which accounted for 25 percent of the total. What are the main reasons behind China overtaking its competitors (00:38)?

Fitch downgrades U.S. credit rating. What impact will it have on the US economy (18:02)?