U.S. and Canadian mining multinationals are responsible for the displacement of 21,000 peasant farmers and the devastation of their land, the local environment, and natural resources, such as water. Those opposing these companies and their practices have been subject to repression. Advocates of these communities took their case to Washington. The U.S. government, they charge, has turned a blind eye to their plight. Bianca Perez reports from Washington. teleSUR