U.N. Delays Salvage of Yemen Oil Tanker Amid Fears of Major Spill

The United Nations had planned to start a maritime salvage operation to prevent leaks from a dilapidated tanker holding four times the oil that spilled in the Exxon Valdez disaster. But Houthi insurgents have failed to provide a written security guarantee, the U.N. said. By BY RICK GLADSTONE from NYT