Larry King on the Effects of Smoking

It's easy to think that smoking is just another "bad habit" and that you'll quit when you want to. For legendary broadcaster Larry King, his dependence on nicotine started when he was 17-years old and continued well into his 50s. Pfizer's Chief Medical Officer Freda Lewis-Hall, M.D., sits down with Larry to discuss his very public history of smoking and when he finally decided that enough was enough.