cigarettes

http://www.slate.com/id/1005187/

http://no-smoking.org/nov04/11-24-04-2.html

http://observer.case.edu/Archives/Volume_34/Issue_11/Story_4093/

http://www.macleans.ca/article.jsp?content=20051007_182043_5680

http://www.helium.com/debates/154361-should-smokers-bear-the-responsibility-for-the-health-risks-of-cigarette-smoking/side_by_side