Leadership of the International Longshoremen’s Association on Monday authorized their president Harold J. Daggett to call strike when their contract expires later this month if the union is unable to agree on a new contract with employers. About 200 ILA wage scale delegates, meeting this week in Delray Beach, Fla., with employer representatives from the U.S. Marine Alliance (USMX), voted unanimously to grant Daggett the ability to call a strike, said James McNamara, a spokesman for...