CNNW Anderson Cooper 360 May 21, 2015
Allowed to have David Letterman is signing off tonight. And no laughing matter. We begin with it report youll only see here. It begins with a florida dentist who is accused of harming the most vulnerable patients children for procedures they didnt need or want. And as disturbing as this story is and we warn you, its hard to watch at times, it may be just the tip of the iceberg. And they have found questionable billing among dental providers in five states. And just this week they found that more than 300 may be over charging medicaid and while these findings arent proof of fraud, the office of...