US Air Force C-17 crew members, from Elmendorf Air Force Base, Anchorage, Alaska deliver oil spill containment boom to Naval Air Station Joint Reserve Base in Belle Chasse, Louisiana May 11, 2010. This is just one of ten shipments scheduled over the coming days delivering a total of 150,000 feet (45, 720 meters) of boom that will be used in the protection of the coastline and coastal communities from the Deepwater Horizon oil spill. [Agencies]