Warnings emerge of possible link between e-cigarettes and severe lung disease in teens

There are new warnings this morning about a possible link between severe lung disease in teenagers and e-cigarettes and vaping. Minnesota is now the third state where serious lung injuries have been reported in the last month. Four cases in the state involved 16- to 18-year-old teenagers. CBS News spoke with the chief medical officer at Children's Minnesota, who described a pattern of cases with a similar but unusual path. Anna Werner reports.