As authorities from France, Brazil, and the U.S. come to terms with the increasingly frustrating hunt for answers about the crash of Air France Flight 447, more and more resources are being diverted to the search effort in the Atlantic. Most recently, a French nuclear submarine with surveillance equipment joined the force to look for wreckage. Already on its way to the supposed crash site is a French marine research ship equipped with two non-nuclear submarines, along with three Brazilian boats, expected to arrive within the next few days. The top priority is to look for debris before it has a chance to sink or disappear, although the plane's black box may already be lost. The search for debris continues after material salvaged from the Atlantic Ocean early this week turned out not to be unrelated to the plane crash that killed all 228 on board.