ATLANTA (AP) - For generations, Grady Memorial Hospital has treated the poorest of the poor, victims of stabbings and shootings, and motorists grievously injured in Atlanta's murderous rush-hour traffic. Now, Grady itself is in grave condition. Staggering under a deficit projected at $55 million, the city's only public hospital could close at the end of the year, leaving Atlanta without a major trauma center and foisting thousands of poor people onto emergency rooms at other hospitals for their routine medical care. "I don't have the words to describe the onslaught of health care needs that will hit the region if...