A demonstrator affiliated with the Occupy Wall Street movement holds up a sign in front of the Bank of America Corp. tower in New York, U.S., on Tuesday, May 1, 2012. Occupy Wall Street demonstrators, whose anti-greed message spread worldwide during an eight-week encampment in Lower Manhattan last year, plan marches across the globe today calling attention to what they say are abuses of power and wealth. Photographer: Scott Eells/Bloomberg via Getty Images