Greenpeace has filed a federal lawsuit against Dow Chemical and Sasol North America for engaging in corporate espionage. Also named in the suit are the public relation firms Dezenhall Resources and Ketchum and the now-defunct firm Beckett Brown International. The lawsuit alleges that corporate spies stole thousands of confidential documents from Greenpeace, including campaign plans, employee records, phone records, and donor and media lists. The suit also claims that agents infiltrated a community group in Lake Charles, Louisiana. The spy operation was first exposed by investigative journalist James Ridgeway of Mother Jones magazine.