Sen. Lindsey Graham's unexpected death raises awareness of rare medical emergency

The sudden death of Sen. Lindsey Graham has brought new attention to aortic dissection, a rare but often life-threatening medical emergency. To help us better understand what an aortic dissection is, who is at risk and what people should know, KCBS Radio news anchor Margie Shafer spoke with Stanford Medicine's Chief of Vascular Surgery Jason Lee. Getty Images/Kevin Dietsch