Doctors draw attention to potential health downsides of long-term marijuana use

As of May, 24 U.S. states and Washington, D.C., have legalized recreational cannabis. As more people in the U.S. use higher-potency products, more attention is being given to the potential health downsides of long-term marijuana use. Josh Code, assistant editor of the Free Press and CBS News medical contributor Dr. Céline Gounder discuss.