Why doctors are rethinking breast cancer treatment

Medicine is slow to move, and that's especially true with breast cancer. Doctors are up against not only new data but also an accumulated mass of public opinion seeded by policymakers and advocacy groups with strong positions on how best to screen for and treat breast cancer. These measures were put into place for good reason, of course–because experts thought they would save lives. But they didn't–or at least not as many as anticipated. This year more than 40,000 women in the U.S. will die of breast cancer.