NEW YORK, NY - MAY 01: Political signs are viewed as demonstrators gather and prepare to march down Broadway on International Workers Day, or Labor Day, on May 1, 2014 in New York City. The annual global gathering of immigration rights activists, leftists, labor unions and others often results in confrontations with police. The very first Labor Day in America took place on May 1, 1886, as a celebration of the American labor movement and the adoption of the 8-hour work day. (Photo by Spencer Platt/Getty Images)
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