Their plan had been to attack an officers’ club dance at an Army post in New Jersey, part of the Weathermen’s effort to bring home the war in Vietnam. On the morning of March 6, 1970, Kathy Boudin had just finished showering when a shrapnel-packed dynamite bomb fashioned by her radical colleagues in the militant left-wing Weathermen group accidentally detonated in the basement of the Greenwich Village townhouse where they were staying.