En espanol, tipsheet 2919. This tipsheet describes two instances of North American corporations taking advantage of Latin America's weak environmental laws and need for foreign investors. In these Peruvian cases, U.S. firms contaminated local communities with mercury and lead. The tipsheet suggests several ways to get started investigating American companies that do a lot of business extracting natural resources in Latin America. For instance, the tipsheet suggests visiting the websites of major environmental organizations, using international audits, and talking to EPA officials to find context for the incidents being investigated.