Bolivian independent miners blockade main highway

Bolivian independent miners sit together as they blockade a main highway in Pongo, on the outskirts of La Paz, Sept 24, 2012. Thousands of independent miners protested along a main highway surrounding La Paz city on Monday. According to local media, the miners were embroiled in a labor dispute with the unionized mine workers of Colquiri, the country's second-biggest tin mine, who accused them of violating an agreement between the two groups and wanted them barred from the site. [Photo/Agencies]