![Congressional Investigators Question Federal Coal Sales [AUDIO]](http://townsquare.media/site/99/files/2014/02/450738027-630x420.jpg?w=980&q=75)
Congressional Investigators Question Federal Coal Sales [AUDIO]
Congressional investigators have found problems with federal coal sales that a leading lawmaker said might have cost taxpayers $200 million or more in lost revenue. The Navy is investigating cheating allegations against about one-fifth of its trainers at a school for Naval Nuclear Power Reactor operators.