A Lithuanian sailor on a Russian ship took us at our word and flung himself across the 10 feet of water which separated him from an American Coast Guard cutter to safety and freedom--or so he thought. He was wrong. Hours later. with the permission of the American captain. Russian seamen boarded the ship. beat and kicked him into a bloody unconscious hulk and hauled him back roped in a blanket in an American lifeboat. to their own vessel. His prayers for help and cries for mercy still hang in the air unanswered. The story of how and why official representatives of the United States refused asylum to a refugee. in direct contraven-