Environmental consultant Dave Russell recounts his involvement in the Ecuador lawsuit against Texaco/Chevron over Amazon rainforest contamination. Hired in 2003 to assess cleanup costs, Russell produced a $6.1 billion estimate based on unverified assumptions—a "SWAG" (Scientific Wild Ass Guess) that helped secure a $9.5 billion judgment. However, his soil samples revealed the primary toxins were missing, and ongoing contamination came from Petro Ecuador, not Chevron. The case unraveled when Chevron exposed massive fraud.