Attorneys in Minnesota's tobacco trial introduced documents that suggest a group of industry lawyers set out to hide and destroy internal research about additives in cigarettes. Some health officials have said additives may also pose a danger to smokers of low-tar cigarettes. Minnesota public radio's Elizabeth Stawicki reports: Attorneys for the State and Blue Cross Blue Shield Minnesota introduced a 1981 memo that detailed a meeting by a group of tobacco lawyers--known as the committee of counsel--attorneys who represented each of the major tobacco companies. The memo outlines their strategy to counter negative publicity surrounding cigarette additives by creating a scientific panel that would show the government the industry was policing itself.