Coast Guard Lt. Cmdr. Mike Turner, Arctic navigation lead for the Coast Guard Research and Development Center based in New London, Conn., explains the use of Automated Identification System software while underway aboard the Coast Guard Cutter Healy near Alaska Aug. 11, 2014. The Coast Guard and Marine Exchange of Alaska have teamed up to test the capabilities of existing electronic Maritime Safety Information infrastructure in the Arctic as part of Arctic Shield 2014. (U.S. Coast Guard photo by Petty Officer 1st Class Shawn Eggert)
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