Alcohol is a leading cause of cancer, a risk that should be clearly labeled on drinks Americans consume, U.S. Surgeon General Vivek Murthy proposed on Friday. The proposed advisory would require approval from congress, an approval that is rarely granted by the federal government. Dr. Katie Kerrigan, a Medical Oncologist at the Huntsman Cancer Institute, joins D2 to discuss the extent of alcohol on your physical health and its role in causing cancer.