As the search for missing airliner Malaysia Airlines Flight 370 continues, equipment from U.S. Quincy-based Bluefin Robotics will be helping. "The Bluefin-21 autonomous underwater vehicle (AUV) is part of an additional search effort from the U.S. Navy to locate the airliner, presumed to have crashed in the Southern Indian Ocean off the western coast of Australia," Bluefin posted on its website.[Xinhua photo]