We are at a dramatic moment in the Covid-19 pandemic in the United States. Even as infections and deaths reach horrifying highs, vaccines are becoming available.   What is Operation Warp Speed? How successful has it been in developing vaccines? What vaccines are currently available in the United States? What others are in the pipeline? How is the roll-out going? How long will it be before we return to normalcy? This episode’s guest is Dr. Kirstin R.W. Matthews, Fellow in Science and Technology Policy here at the Baker Institute. She has written and spoken extensively on Covid-19 and vaccines for it.