Brain stent offers new treatment option for stroke victims

In the United States, strokes are the fifth leading cause of death. Most strokes are caused by a blood clot in the brain, which can be treated with a time-sensitive medicine, but few get to the hospital in time. Now, the American Heart Association is recommending a special stent to remove clots. Judy Woodruff talk to Dr. William J. Powers of the University of North Carolina School of Medicine.