At the end of August, I wrote a column headlined – “2011, the year of global indignation“. I suggested that there was a global mood of anti-elite anger, linking outbreaks of popular protest in countries as different as Egypt, India, Chile, China, Israel, Greece and Spain. It is Spain and France that gave birth to the movement, known as the indignados (the indignant).  I also wrote, however, that there was “one striking exception to the this pattern – the US.” Perhaps I spoke too soon. The arrest of more than 700 anti Wall Street protesters in New York - and the possibility that similar protests could spread to other cities in the US - means that the wave of global unrest has now arrived on America’s shores. The whole thing has a whiff of 1968 about it.