Chevron Corp. won a victory in its long-running battle over toxic waste in Ecuador after an appeals court found the American lawyer representing indigenous villagers committed fraud and barred him from enforcing an $8.6 billion award. "Even innocent clients may not benefit from the fraud of their attorney," the appeals court...said..., referring to claims that the Ecuadorians’ lawyer had faked evidence and offered bribes. The appeals court upheld a lower-court ruling. The defeat of lawyer...could influence the outcome of the storied legal dispute...Ecuadorians are seeking to seize Chevron assets because the company has refused to pay on a judgment awarded in 2011 by an Ecuadorian court. It is unlikely to be the last twist in the saga, which began in 1993 when American lawyers sued over pollution which they say affects 30,000 indigenous villagers in the oil-rich Lago Agrio region...