10 years ago this week, a small group of young radicals declared “We are the 99 per cent” and set up camp in Zuccotti Park in Manhattan’s financial district.  Instead of a few people protesting for a few days, the movement exploded; hundreds of thousands of people joined Occupy camps in more than 600 U.S. towns and cities.  CUNY professors Ruth Milkman and Stephanie Luce comment--they’ve written for The Nation’s special issue on the 10th anniversary of Occupy.