This episode's headline: Upping the Ante; China in Transition - Taking the Plunge; Newsmaker; Roots of the Problem?. The guests include DAN BLACK, Bureau of Alcohol, Tobacco & Firearms; RICHARD GARDINER, National Rifle Association; DONNA SHALALA, Secretary, Health & Human Services; CORRESPONDENTS: ROBERT OXNAM; PAUL HOFFMAN. Byline: In New York: ROBERT MacNeil; In Washington: MARGARET WARNER