us. on behalf of all our colleagues at the network of nbc news, goodnight. etwork of nbc news goodnight. tonight on all in. the anti-vaccine crowd, roars in south carolina. as a destructive deadly disinformation campaign continues. >> were at each other's throats. and now these mandates are going to destroy our health care system. >> the facebook whistle blower, faces congress. >> facebook's products harm children. stoke division, and weaken our democracy. >> plus what we know about why the fbi raided the offices of a new york city police union, and the home of that unions president. and is the department of justice steps, and how one republican senator is pretending the school board harassment and intimidation, are not off the charts. >> it's waiting to express ones view at a school board meeting,