Mexico announced Friday it has suspended permits for a U.S. research vessel conducting sound-wave experiments in the Gulf after the ship ran aground on a coral reef and damaged it. Mexico's Environment Department said the U.S. ship Maurice Ewing must stop the research voyage until it pays for damage done to underwater rock formations and coral about 30 miles off the Yucatan peninsula in the Monday accident. "This is a precautionary measures to ensure the ship pays the damages and fines," said Attorney General for Environmental Protection Jose Luis Luege. Officials with Columbia University's Lamont-Doherty Earth Observatory, which is in...