Teachers gather upon their arrival at the San Francisco square

 
Teachers gather upon their arrival at the San Francisco square
Teachers gather upon their arrival at the San Francisco square, after marching from Caracollo to La Paz May 17, 2010. Teachers demanded a wage increase from the government of Bolivia's President Evo Morales. REUTERS/Gaston Brito (BOLIVIA - Tags: CIVIL UNREST POLITICS EDUCATION)