11.   Bush, now a member of Parents of Murdered Children, is working to protect children by lobbying against the early release of prisoners.

12.   Bush said Norton will improve the national parks system and work to protect endangered species.

13.   But he won praise from environmentalists for working to protect the Hudson River and from teachers unions for fighting to increase state aid to suburban schools.

14.   He must trust them if their odd symbiotic relationship is to work to protect his personal safety.

15.   Incentives and technical help would be provided to help private landowners and other groups work to protect salmon, he said.

16.   Meanwhile, a Ranger unit known as the Frontier Regiment worked to protect Texans along the northern and western frontiers.

17.   Post offices around the country are working to protect their employees, said Terry Penland, a postal spokeswoman in Kansas City.

18.   She was pointedly anti-communist and worked to protect dissidents and minorities.

19.   Some cities are working to protect their ground water and their watersheds, the areas surrounding rivers and reservoirs, from pollution.

20.   The authors said that natural colonization remained a possibility if Canada and the United States worked together to protect wolves in the dispersal corridors.