Members of Service Employees International Union march from the encampment at City Hall, center, Tuesday, Oct. 18, 2011, in Philadelphia. The encampment at City Hall is one of many being held across the country recently in support of the ongoing Occupy Wall Street demonstration in New York. (AP-Yonhap News)

Amber Hope, 24, of Pittsburg, Pa., chants at the Occupy Wall Streets while wearing body paint in Zuccotti Park, Tuesday, Oct. 18, 2011, in New York. The protests against corporate greed and various issues have continued for more than a month and spawned similar uprisings around the world, attracting participants and tourists from around the country and beyond. (AP-Yonhap News)