Royal Dutch Shell Plc…must face a lawsuit seeking to hold it responsible for violations of international law by Nigeria’s military government…U.S. District Judge Kimba Wood…refused…to toss out the case on jurisdictional grounds in a setback for Shell. A trial in the case, which was brought by relatives of human-rights activists killed in Nigeria, is scheduled to begin in New York on May 26…In an opinion today, Wood threw out claims that Shell violated the activists’ rights related to peaceful assembly. She said other claims alleging crimes against humanity may go forward.