Dr. Anthony Fauci said Saturday morning that he would not be shocked to learn that the COVID-19 omicron variant is already in the U.S. In an interview on NBC's "Weekend TODAY" show, the National Institute of Allergy and Infectious Diseases (NIAID) Director told co-hosts Kristen Welker and Peter Alexander that the strain has a large number of mutations that would suggest it could potentially evade immune protection and that scientists can predict it will be more transmissible. "We don't know that yet, but you have to be careful and assume that that's the case. It also has a bunch of...