Dr. Anthony Fauci to self-quarantine after coronavirus exposure: Sunday TODAY’s top news stories

White House coronavirus task force member Dr. Anthony Fauci plans to follow a “modified quarantine,” including wearing a mask and limited outside contact, and CDC director Dr. Robert Redfield and FDA head Dr. Stephen Hahn will remain at home for two weeks after they were exposed to someone with the coronavirus. NBC’s Kelly O’Donnell reports for Sunday TODAY, and Meet the Press moderator Chuck Todd and CNBC’s Aaron Ross Sorkin join with analysis.