A US Department of Interior internal investigation found that four auditors in the Minerals Management Service’s Minerals Revenue Management division did not follow departmental procedures for reporting royalty and interest underpayment allegations before suing to recover the money.The investigation also criticized MRM’s working environment “in which poor communication, or no communication, compounded an already existing element of distrust.” It found signs of “a profound failure in the development of a critical MRM information technology system.” And it revealed “a band-aid approach to holding together one of the federal government’s larges...