Occupy Oakland demonstrators stand their ground during a standoff with police on May Day in Frank Ogawa Plaza in Oakland

 
Occupy Oakland demonstrators stand their ground during a standoff with police on May Day in Frank Ogawa Plaza in Oakland
Occupy Oakland demonstrators stand their ground during a standoff with police on May Day in Frank Ogawa Plaza in Oakland, California, May 1, 2012. REUTERS/Beck Diefenbach (UNITED STATES - Tags: CIVIL UNREST POLITICS BUSINESS EMPLOYMENT)