Joint POW/MIA Personnel Accounting Command forensic anthropologist Laurel Freas makes an entry in her field notes on her observations from using the subsurface camera at the excavation site on a glacier near Koge Bay, Greenland, Aug. 13, 2013. Freas uses the subsurface camera to look evidence of a U.S. Coast Guard World War II-era J2F-4 Grumman Duck aircraft that reportedly crashed at that site on Nov. 29, 1942. U.S. Coast Guard photo by Petty Officer 2nd Class Jetta H. Disco.