Former US Secretary of State Colin Powell died on Monday of Covid-19 complications. His family announced that he was fully vaccinated. He was 84 years old, and had multiple myeloma, a blood cancer. Health officials worry that anti-vaccine activists will seize upon Powell's death to make the claim that vaccines don't work. If you can still die after being vaccinated for Covid-19, what's the point of getting the vaccine? CNN: When we see vaccinated people dying from Covid-19, how do you explain that vaccines are still worth taking? Dr. Leana Wen: We need to start with the science and what...