certain major equipment / oil / law enforcement / /
NaturalFeature
Polar Sea / /
Organization
National Research Council / National Science Foundation / U.S. Coast Guard / Government Accountability Office / Congress Department of Defense / Senate / Navy / Congress / Congressional Research Service / Department of Homeland Security / United States Navy / Coast Guard Mobility and Ice Operations Division / /
Person
Compass / Andrew C. Revkin / Cid Standifer / Polar Icebreaker / Polar Icebreakers / Icebreakers Around / Ronald O'Rourke / Robert Papp / Kyung M. Song / /