Expensive homes built next to nature preserve. More than a dozen expensive homes under construction were burned down yesterday in a suburban Washington housing development that had been criticized by environmentalists because it is next to a nature preserve, officials said. An FBI agent said the fires may have been set by environmental extremists. A dozen homes were destroyed and 29 others damaged near the state’s Mattawoman Natural Environment Area. No injuries were reported. The damage was estimated to be at least $10 million. Full Story