U.S. Navy divers from Mobile Diving Salvage Unit Two are prepared on the deck of the USS Grapple (ARS 53) to dive on the crash site of Swissair Flight 111 off the coast of Peggy's Cove, Nova Scotia, on Sept. 13, 1998. U.S. and Canadian forces are working together in the retrieval of victims and aircraft debris from the crash site. Grapple is the U.S. Navy's newest rescue and salvage vessel and can deploy Mobile Underwater Debris Survey System technology, Synthetic Aperture Sonar, and the Laser Electro-Optics Identification System to provide detailed images of the ocean floor.