Susan Myles: Good evening, this is News Watch. Emergency efforts continue in Charleston, South Carolina, where 3 days ago a nuclear explosion destroyed the heart of the city. Estimated at an yield of 23,000 tons of TNT was seen and heard up to 400 miles away and created a firestorm that is still burning in several areas. Due to early evacuations, the number of dead is estimated at less than 2,000, but at last count there were more than 25,000 injured. Many of those are burnt and have been flown to hospitals around the country for treatment, but altogether the burn care centers in the United States have only 2,400 beds, less than half the number needed for the victims of the Charleston blast. Because onshore winds spreading radiation fallout west of the city, 250,000 more people have been evacuated from outlying areas. In all, half a million are homeless. Scientists estimate that it may be years before the region is safe to reoccupy. Trauma care centers are being set up for survivors, many of whom are physically uninjured but suffering from shock and delayed stress. Authorities are also caring for hundreds of children who are either orphaned or cannot find their parents. Counselors tell of recurring nightmares and shock. One child of 9 apparently committed suicide. After 3 days the shock seems to be just setting in. Early talk of rebuilding have been forgotten in the wake of radiation estimates. Hundreds of thousands of refugees face the prospects of starting new lives elsewhere in an already depressed economy. As for Charleston itself, the city of gardens and narrow streets and beautiful old houses, that city is gone forever. A new city may someday grow there years from now, or it may remain a desert, whichever, the staggering loss of once was can never be eradicated.