Leading doctors push back on new mammogram guidelines

The American Cancer Society says it came up with its recommendations that women start mammograms at an older age after reviewing the best medical evidence available, and weighing the benefits and harms of mammograms. But this has boiled up controversy in the medical community, and three leading doctors are pushing back in a New York Times op-ed. With more than 200,000 new cases of breast cancer expected this year, the doctors who wrote the editorial say early detection is key, reports CBS News correspondent Michelle Miller. "All of us believe that the bottom line is saving lives and mammography saves lives," said Dr. Susan Drossman.