One of the most high-profile victims of the Irish Troubles was a mother of 10 named Jean McConville, who was taken from her home one night and never seen again. New Yorker staff writer Patrick Radden Keefe talks to host Krys Boyd about assessing this recent dark period of Irish history through the lens of this mysterious disappearance. His book “Say Nothing: A True Story of Murder and Memory in Northern Ireland” was a national best-seller and is now out in paperback.