Mammogram Centers Must Tell Women if They Have Dense Breasts, F.D.A. Proposes A new rule would require mammogram providers to let women know if they have dense breast tissue, which can hide cancer from X-rays. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:The Google Lunar X Prize’s Race to the Moon Is Over. Nobody Won.Science Group Ranks Evidence on E-Cigarette SafetyAlaska earthquake: More tremors predicted as Earth’s rotation slowsAlaska Earthquake: ‘Ring of Fire’ earthquake zone will shake planet to its coreVaping Can Be Addictive and May Lure Teenagers to Smoking, Science Panel ConcludesAlaska earthquake: Powerful aftershocks to strike TODAY