Every few months there's a shocking news story about the sustained, and often fatal, abuse of a disabled person. It's easy to write off such cases as bullying that got out of hand, terrible criminal anomalies or regrettable failures of the care system, but in fact they point to a more uncomfortable and fundamental truth about how our society treats its most unequal citizens. In Scapegoat, Katharine Quarmby looks behind the headlines to question and...