Throughout his new memoir, Nicholas Kristof escapes plane crashes, dodges warlords and debates whether to let his family know he’s in danger in the moment or later. He also, not for nothing, survives and thrives as a globe-trotting newspaper writer during a period in which the shape-shifting economics of journalism have left that kind of career vanishingly rare. “Kristof has kept the tradition of the front-line columnist alive,” as the editors of Deadline Artists, one of the best anthologies of American newspaper columns, put it.