David Grann on his new book 'The Wager'

David Grann, author of Killers of the Flower Moon which is being made into a movie by Martin Scorsese starring Leonardo DeCaprio and Robert De Niro, has a new book out. David and Keith discuss The Wager which tells a story of shipwreck, survival and savagery. Follow Keith on Twitter: @keithlaw Follow David on Twitter: @DavidGrann Learn more about your ad choices. Visit megaphone.fm/adchoices