PBS News Weekend S05 E74 September 16, 2017

On this edition for Saturday, Sept. 16, British police make an arrest following Friday’s London train bombing, and the U.S. takes the war on the Islamic State to federal court. Later, American troops are still deployed in Japan more than 70 years after the end of World War II and many on the island of Okinawa want them to leave. Hari Sreenivasan anchors from New York.