COVID battle especially is threatened, Murthy says in asking Americans' help
                                
                                
                                    (Newser) -
                                    The US surgeon general pointed out Thursday that the national advisories issued by his office usually concern a disease, or our diet, or smoking, or drinking. Not this time,  ABC  reports. "Today, we live in a world where misinformation poses an imminent and insidious threat to our nation's...