Do want you know why we put billions of dollars into breast cancer research, yet have little to show in progress over the past three decades?  This video gives a great overview.  Check out the stories of these women, who are participating in something called the “I SPY 2” trial.

http://dgjigvacl6ipj.cloudfront.net/media/swf/PBSPlayer.swf

Watch Potential Breakthroughs in Breast Cancer Research on PBS. See more from Need To Know.