Shark attacks have grabbed their share of headlines here in America, but with the recent death of a 21-year old college student near Brisbane, it now seems a similar wave of concern is sweeping Australia.  This according to the BBC news, which notes that more and more beaches down under are looking to use meshing nets to keep the dangerous predators away.  These nets have been used on some fifty beaches around Sydney for over seventy years, and the beaches which employ them have only had one fatal shark attack during all that time.  Environmentalists, for their part, strenuously object to the safety nets and say they occasionally kill dolphins and turtles.  But it seems such protests against shark nets are not getting any bite with the public.