Canada's Pacific Rim mining company owns all the land around El Dorado in El Salvador - one of the most coveted gold mines in Central America. But the company has been unable to dig in because of resistance from local environmentalists who say that cyanide used in gold mining will contaminate their rivers. The mine is currently shut down because of protests. Recent murders and death threats against activists in the region have put the spotlight on the gold mining project there. [transcript:] Pacific Rim denies these allegations...We are willing to cooperate with any investigation. We have nothing to do with these killings or the use of violence.