“Unlike some liberals who go wobbly when confronted with U.S. military intervention done in the name of ‘human rights,’ the principled libertarian Scott Horton consistently opposes American aggression abroad. Read his Fool’s Errand to find out why the U.S. never should have invaded Afghanistan and should get out now. — Reese Erlich, foreign correspondent and author of Inside Syria: The Backstory of Their Civil War and What the World Can Expect.