U.S. smoking rate does something it hasn't in years

Some 50 years ago, roughly 42 percent of U.S. adults smoked, but picture is radically different today

From: http://redirect.viglink.com?u=http%3A%2F%2Fwww.cbsnews.com%2Fnews%2Fus-smoking-rate-does-something-it-hasnt-in-years%2F&key=ddaed8f51db7bb1330a6f6de768a69b8