May Day Activists Mark International Worker's Day In California

SAN FRANCISCO, CA - MAY 01: Occupy protestors paint a mural on the street during a demonstration that occupied the intersection of Market and Montgomery Streets on May 1, 2012 in San Francisco, California. Occupy Wall Street groups across the country have joined with unions during the May Day protests, a traditional day of global protests in sympathy with unions and leftist politics. (Photo by Justin Sullivan/Getty Images)

May Day Activists Mark International Worker's Day In California

SAN FRANCISCO, CA - MAY 01: Occupy protestors paint a mural on the street during a demonstration that occupied the intersection of Market and Montgomery Streets on May 1, 2012 in San Francisco, California. Occupy Wall Street groups across the country have joined with unions during the May Day protests, a traditional day of global protests in sympathy with unions and leftist politics. (Photo by Justin Sullivan/Getty Images)

May Day Activists Mark International Worker's Day In California

SAN FRANCISCO, CA - MAY 01: An Occupy protestor holds up a depiction of a Wall Street executive during a demonstration that occupied the intersection of Market and Montgomery Streets on May 1, 2012 in San Francisco, California. Occupy Wall Street groups across the country have joined with unions during the May Day protests, a traditional day of global protests in sympathy with unions and leftist politics. (Photo by Justin Sullivan/Getty Images)

May Day Activists Mark International Worker's Day In California

SAN FRANCISCO, CA - MAY 01: A security guard blocks a door as Occupy protestors and union members stage a demonstration outside of the Westfield San Francisco Centre on May 1, 2012 in San Francisco, California. Occupy Wall Street groups across the country have joined with unions during the May Day protests, a traditional day of global protests in sympathy with unions and leftist politics. (Photo by Justin Sullivan/Getty Images)

May Day Activists Mark International Worker's Day In California

SAN FRANCISCO, CA - MAY 01: An Occupy protestor runs under a parachute during a demonstration that cooupied the intersection of Market and Montgomery Streets on May 1, 2012 in San Francisco, California. Occupy Wall Street groups across the country have joined with unions during the May Day protests, a traditional day of global protests in sympathy with unions and leftist politics. (Photo by Justin Sullivan/Getty Images)

May Day Activists Mark International Worker's Day In California

SAN FRANCISCO, CA - MAY 01: Occupy protestors paint a mural on the street during a demonstration that occupied the intersection of Market and Montgomery Streets on May 1, 2012 in San Francisco, California. Occupy Wall Street groups across the country have joined with unions during the May Day protests, a traditional day of global protests in sympathy with unions and leftist politics. (Photo by Justin Sullivan/Getty Images)

May Day Activists Mark International Worker's Day In California

SAN FRANCISCO, CA - MAY 01: Yellow paint coats the shoes of an Occupy protestor as she paints a mural on the street during a demonstration that occupied the intersection of Market and Montgomery Streets on May 1, 2012 in San Francisco, California. Occupy Wall Street groups across the country have joined with unions during the May Day protests, a traditional day of global protests in sympathy with unions and leftist politics. (Photo by Justin Sullivan/Getty Images)

May Day Activists Mark International Worker's Day In California

SAN FRANCISCO, CA - MAY 01: Occupy protestors and union members stage a demonstration outside of the Westfield San Francisco Centre on May 1, 2012 in San Francisco, California. Occupy Wall Street groups across the country have joined with unions during the May Day protests, a traditional day of global protests in sympathy with unions and leftist politics. (Photo by Justin Sullivan/Getty Images)

May Day Activists Mark International Worker's Day In California

SAN FRANCISCO, CA - MAY 01: Occupy protestors sit around a mural that was painted on the street during a demonstration that occupied the intersection of Market and Montgomery Streets on May 1, 2012 in San Francisco, California. Occupy Wall Street groups across the country have joined with unions during the May Day protests, a traditional day of global protests in sympathy with unions and leftist politics. (Photo by Justin Sullivan/Getty Images)

May Day Activists Mark International Worker's Day In California

SAN FRANCISCO, CA - MAY 01: Occupy protestors and union members stage a demonstration outside of the Westfield San Francisco Centre on May 1, 2012 in San Francisco, California. Occupy Wall Street groups across the country have joined with unions during the May Day protests, a traditional day of global protests in sympathy with unions and leftist politics. (Photo by Justin Sullivan/Getty Images)

May Day Activists Mark International Worker's Day In California

SAN FRANCISCO, CA - MAY 01: Occupy protestors run under a parachute during a demonstration that occupied the intersection of Market and Montgomery Streets on May 1, 2012 in San Francisco, California. Occupy Wall Street groups across the country have joined with unions during the May Day protests, a traditional day of global protests in sympathy with unions and leftist politics. (Photo by Justin Sullivan/Getty Images)