IT might have been an occasion of unambiguous joy: three American prisoners of war returning to their families after long months of imprisonment in North Viet Nam. Instead, the route home last week assumed the quality of an international morality play, an occasionally bitter and tearful business that caught the three pilots in a propaganda tug-of-war involving the North Vietnamese, the Pentagon and the American peace movement. All three sides were using the flyers as pawns in a larger drama of image and diplomacy.
Thus the welcome-home at New York's Kennedy International...