Jake Tapper, the journalist and CNN news anchor, was anxious. "What did you think?" he asked. "Did we do right by your son? Did we do right by your husband?” He was speaking with the mothers and wives of the men who lost their lives at the Battle of Kamdesh after the families gathered to watch a screening of the film, The Outpost, based on the nonfiction book he wrote that resolutely captures the turmoil of modern warfare.