Amazon leaders are accusing Chevron of fabricating evidence and engaging in a "campaign of intimidation" in Ecuador to derail a class action rainforest pollution trial as it nears completion, said a spokesman for the Coalition to Defend the Amazon, the non-profit group bringing the case.... Three indigenous groups report they are near extinction in areas of the rainforest where Chevron operated. The evidentiary portion of the trial is expected to end in months, with a decision in 2008.