Leroy McKnight retired in 2000 as an hourly employee and union officer after more than three decades with General Motors Corp., thinking his retiree health care needs were covered. Now, he's taking stock-trading classes at a local college, just in case. "People like me worked for 30 years for wages and health care while we worked, and a pension and health care in retirement," McKnight said. "They've come along and changed that, and it isn't fair." .