CUBA . . . HARBOR TO NOWHERE

Cuban authorities are locked in a standoff with 700 would-be emigres who took over an oil tanker in the port of Mariel, intent on reaching U.S. soil. The Cubans reportedly took advantage of a security lapse and rushed aboard the Maltese-registered vessel Sunday. The number of Cubans fleeing is rising as the Communist country's economy disintegrates without Soviet aid. The U.S. Coast Guard helped 371 Cubans to shore over the weekend, the biggest three-day total since the Mariel boatlift in 1980.