Aspen Ideas Festival: Breakthroughs in Cancer

Mammogram
In this photo taken on Thursday, May. 6, 2010, radiologist Dr. Gerald Iba checks mammograms at The Elizabeth Center for Cancer Detection in Los Angeles.
AP Photo/Damian Dovarganes

Doctors from three major cancer centers speaking at the Aspen Ideas Festival say there's been a scientific revolution in understanding cancer: what it is, and how to prevent it and treat it. From gene sequencing to immunotherapy, cancer research is making major advances, but the cost is significant.

Dr. Edith Perez of the Mayo Clinic, Dr. Corey Casper of the University of Washington, and Dr. Ron DePinho of the University of Texas. Moderator, Alan Weil, June 26, 2015.