WJR Actress Olivia Munn is one of the latest celebrities to reveal a breast cancer diagnosis. She had four surgeries, including a double mastectomy. She credited her OBGYN for having her take a breast cancer risk assessment after her recent mammogram came back negative, and her genetic testing results were also negative for 90 different cancer genes. Eric Brown, M.D., FACS , breast surgeon and co-leader of the Breast Cancer Multidisciplinary Team at Karmanos , joined 'JR Morning to explain why this test...