Found: The Alexander Hamilton
Some seeping oil has led to the discovery of one of the first U.S. warships sunk after the United States entered World War II. On 7 July 2009, an Icelandic Coast Guard aircraft using new pollution-detection equipment spotted traces of an oil leak. The coast guard dispatched a survey ship equipped with a multibeam side-scan sonar to look for unidentified wrecks in the vicinity. The resulting data revealed a ship about 90 meters long lying in about 100 meters of water. It was suspected that she was the USCGC Alexander Hamilton (WPG-34), lost to a U-boat some 67 years ago, but the data was not of high-enough resolution for a positive identification.
An Icelandic cutter, the EAgir, with equipment and technicians from autonomous underwater vehicle (AUV) manufacturer Hafmynd Ehf on board, took a closer look using both AUV and remotely operated vehicles. When the data from this 31 August mission was compared with dry-dock photos of the cutter's hull, it was determined that the wreck was indeed the Alexander Hamilton.