NEW YORK - More than 700 people protesting corporate greed, social inequality and global warming were arrested in NY when they blocked traffic on the city's Brooklyn Bridge, forcing authorities to shut it down for hours, police said. They were part of a larger group crossing the bridge from Manhattan, where they have been camped out near Wall Street, the world's biggest business and financial centre, for two weeks. Some entered the bridge's roadway and were met by a large police presence and detained, most for disorderly conduct. The loosely-organised group is called "Occupy Wall Street". They say they are defending 99% of the US population against the wealthiest 1%. The "Occupy Wall Street" movement called for 20,000 people to "flood into lower Manhattan" on Sept 17 and remain there for "a few months".