CHARLOTTE, N.C. -- A Charlotte attorney has sued Carolinas HealthCare System, saying it has violated the state public records law. Charlotte attorney Gary Jackson has accused the operator of Carolinas Medical Center and more than 30 other hospitals of keeping secret the terms of a legal settlement, The Charlotte Observer reported. Carolinas HealthCare won a confidential settlement in a complaint it filed against the former Wachovia Bank. The settlement followed a 2008 lawsuit in which Carolinas HealthCare accused the bank of breaking a promise to put the hospital system's money in low-risk investments.