ROBERT, La. (AP) - High-ranking Obama administration officials are visiting the Gulf Coast to reassure the public that the government is doing all it can to prevent the massive oil spill from damaging the region's economy and wildlife.

Interior Department Secretary Ken Salazar planned Wednesday to tour the Delta National Wildlife Refuge in Louisiana and the Bon Secour National Wildlife Refuge in Alabama.

He also will visit the oil spill command center in Robert, La. Homeland Security Secretary Janet Napolitano, Department of Commerce Secretary Gary Locke, National Oceanic and Atmospheric Administration Administrator Jane Lubchenco and Environmental Protection Agency Deputy Administrator Bob Perciasepe also will tour the coastal region Thursday and Friday.