Dr. Anthony Fauci, the nation’s top infectious disease expert, responded Thursday to Lara Logan, who compared him to Nazi Dr. Josef Mengele earlier this week, calling her comments “disgusting” and “slanderous.” When MSNBC’s Chris Hayes asked him to respond to the Fox Nation host’s comparison, Fauci said, “It’s an insult to all of the people who suffered and died under the Nazi regime in the concentration camps.” He went on, hitting not only Logan, but her employer: “Forget about the fact that she was being totally slanderous to me and, as usual, had no idea what she was talking about,...