"With stark poignancy and political dispassion, Tightrope draws us deep into an "other America." The authors tell this story, in part, through the lives of some of the children with whom Kristof grew up, in rural Yamhill, Oregon, an area that prospered for much of the twentieth century but has been devastated in the last few decades as blue-collar jobs disappeared. About one-quarter of the children on Kristof's old school bus died in adulthood from...