Dr. Anthony Fauci, the U.S. government's top infectious disease expert, tells CBS News chief Washington correspondent Major Garrett that he thinks regulators in the U.K. "rushed" their approval of Pfizer's COVID-19 vaccine, and that U.S. needs to be more careful, due to vaccine skepticism in the country. Politico health care reporter Dan Diamond joins CBSN's "Red & Blue" host Elaine Quijano to discuss the long road ahead for what's expected to be the largest vaccination program in U.S. history.