How much inequality is too much?
740 Park Ave, New York City, is home to some of the wealthiest Americans. Across the Harlem River, 10 minutes to the north, is the other Park Avenue in South Bronx, where more than half the population needs food stamps and children are 20 times more likely to be killed.
This is the America of President Barack Obama - who promised that a wind of change would sweep through the land.
In the last 30 years, inequality has rocketed in the US -- the American Dream only applies to those with money to lobby politicians for friendly bills on Capitol Hill.