Scroungers, sponges, leeches. These are just are some of the terms that are now used to describe the most vulnerable in our society, whether they are sick, disabled, or unemployed. Even the programs they draw from are often called "entitlements," linking social assistance to something seen as self-serving. People who depend on welfare programs have long been a popular scapegoat for all manner of social ills, but in recent years hostility towards...