US inequality will define the Obama era

US inequality will define the Obama era Since the onset of the financial crisis, each year has brought slightly lower middle-class incomes than the previous one, writes Edward Luce
http://link.ft.com/r/TWK799/7ZYLEG/6VC7TN/VLRMKR/IE8EAW/36/h?a1=2013&a2=4&a3=1