481. New Hampshire Union Leader (Manchester, NH) - December 4, 1998 Secondhand smoke belongs on cancer list, panelists say. Doctors warn those taking asthma drug. Philip Morris to discourage youth smoking RESEARCH TRIANGLE PARK, N. C. (AP) An advisory commission’s decision has paved the way for secondhand smoke to be placed on the federal government’s official list of cancer-causing substances, over the tobacco industry’s strong objections. The subcommittee of the National Toxicology Program’s