PBS News Hour S42 E211 October 23, 2017

Monday on the NewsHour, a look at the questions surrounding a deadly ambush in Niger that left four American soldiers dead. Also: What Tom Hanks has to say about the Harvey Weinstein scandal, military couples find hope in IVF, the latest book in a series that brought us "Girl With the Dragon Tattoo," and a West Virginia poet explores the opioid crisis.