A new study suggests that mammograms are not as helpful in extending breast cancer survival rates as we think. Correspondent Dr. Emily Senay will tell us what we need to know about the new study, and what the controversy means for health policy.
Need to Know is a production of Creative News Group (CNG) in association with WNET. Marc Rosenwasser is Executive Producer. Need to Know is made possible by Bernard and Irene Schwartz, Mutual of America, Citi Foundation, John D. and Catherine T. MacArthur Foundation, Miriam and Ira D. Wallach Foundation, Margaret A. Cargill Foundation, The Corporation for Public Broadcasting and PBS.