Chevron Corp. can be sued in a U.S. court for a subsidiary's alleged collusion with the Nigerian government in attacks that killed and wounded villagers protesting the oil company's practices, a federal judge in San Francisco has ruled…. Chevron did not comment on the ruling but criticized the suit. "The lawsuit is brought by Nigerian militants who took over Chevron's offshore barge and drilling platform, holding more than 100 hostages for three days…,'' the company said…."We continue to believe the Nigerians have no basis in fact or in law to claim that their rights were violated when government forces rescued the hostages.''