This episode's headline: Fallout From Gas Leak; Byrd Retains Roost; Moving the Home Team; New Theory on Old Bones. The guests include In New York: THOMAS GLADWIN, New York University; RONALD GRAYZEL, Attorney; In Washington: VICTOR SCHWARTZ, Attorney; Sen. ROBERT BYRD, Democrat, West Virginia, Senate Minority Leader; In Boston: JACK CRAIG, The Boston Globe; Reports from NewsHour Correspondents: LOUIS MASSIAH (WHYY-Philadelphia), in Montana. Byline: In New York: ROBERT MacNEIL, Executive Editor; In Washington: JIM LEHRER, Associate Editor