Hearing examining Federal efforts in dealing with chemical & biological weapons threats to America. Witnesses: W. Seth Carus, Center for Nonproliferation Research, Nat. Defense Univ.; David Franz, deputy commander, U.S. Army Med. Research & Materiel Command, Ft. Detrick, MD; Stephen Ostroff, assoc. dir. of epidemiologic science, Nat. Center for Infectious Diseases, Centers for Disease Control & Prevention; Janet Reno, Attorney General, U.S. Dept. of Justice; Louis Freeh, Dir., FBI; Donald Latham, member, Defense Science Board, Reston, VA; Robert Preston, NY, NY; & Christine Gosden, prof. of med. genetics, Univ. of Liverpool (UK).