The U.S. Coast Guard is responsible for intercepting any potential threats that may appear in the D.C. sky.
Sailors Rescued from Tropical Storm
U.S. Coast Guard helicopter crews from Air Station Savannah, Ga., hoisted four adults from a 35-foot sailboat with disabled engines in 15-to-20-foot seas 65 miles off Charleston, S.C., during Tropical Storm Andrea Friday, June 7, 2013. The sailors contacted Coast Guard Sector Charleston Thursday evening to report the vessel's engine was disabled and it was beset by weather. (U.S. Coast Guard video)