Recently released federal data shows the rate of improper payment in Minnesota's Medicaid program is far below the national average, the state's Department of Human Services says. According to the data released by the U.S. Centers for Medicare and Medicaid Services, the error rate in Minnesota is slightly over 2.1%, compared to the national average of 6.1%. The human services department says the data was collected before it started implementing measures to cut down on fraud risk. "We're committed to making Minnesota a national model for preventing fraud and catching errors," said Shireen Gandhi, the temporary human services commissioner. "This...