Cigarettes Deadlier Than Ever?
278 views · Published 30 April 2009 · 2:16 · Indexed 20 September 2026
Channel: CBS News · 2009 · News & Politics
For the past 50 years, U.S. manufacturers have been using a new process to dry tobacco. The process has led to the formation of a highly carcinogenic substance in the leaf. Mark Phillips reports.
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