The International Longshoremen's Association (ILA) and the employers of their members, represented by the U.S. Maritime Alliance (USMX), have agreed to extend their contract 30 days, averting a potential strike at U.S. East and Gulf Coast ports that could have begun as soon as Sunday. George H. Cohen, director of the U.S. Federal Mediation and Conciliation Service, made the announcement Friday morning , saying "the container royalty payment issue has been agreed upon in principle ...