Chevron was accused today by Amazon Watch of failing to disclose a potential multi-billion dollar liability in a growing scandal that raises major issues of corporate governance at the California-based oil giant. For the first time, the corporation was publicly charged with misleading shareholders over its battle in a landmark court case in the Ecuadorian Amazon brought by 30,000 local people whose lives have been devastated by massive environmental pollution caused by Texaco's dumping of billions of gallons of toxic waste when it operated there from 1972-1992.