Who are those at the bottom of society? There has been much discussion in recent years, on both Left and Right, about the existence of an alleged 'underclass' in both Britain and the USA. It has been claimed this group lives outside the mainstream of society, is characterised by crime, suffers from long-term unemployment and single parenthood, and is alienated from its core values.John Welshman shows that there have always been concerns about an 'underclass', whether constructed as...