White House medical adviser Dr. Anthony Fauci drew criticism Tuesday after saying children as young as 3 years old should continue to wear masks to protect against the coronavirus. Asked by MSNBC's Andrea Mitchell about the spread of the Delta variant of the virus and what that means for unvaccinated minors, Fauci said they and their parents should follow federal health advice. In its guidelines for safely opening K-12 schools in the fall, the Centers for Disease Control and Prevention says "masks should be worn indoors by all individuals (age 2 and older) who are not fully vaccinated." "Unvaccinated children...