ABC’s Robin Roberts on Thursday pressed a government official on rationing and a new recommendation that women under the age of 50 shouldn’t get regular mammograms. Talking to one of report's authors, she chided, "Dr. [Thomas] Wilt, you know many are feeling that this is trying to save money, that this is a political move." Roberts challenged Wilt, who is with the U.S. Preventative Services Task Force. Although she didn’t specifically use the word rationing, the implication was clear: "You are an independent panel, but federally funded independent panel. How do you respond to those who feel that this is...