Our weekly news round-up: Chinese required to use their real names when posting comments online; Sharks to be monitored by AI drones on Aussie beaches; Babylonians invented trigonometry well before the Greeks; Johns Hopkins APL proposes a quadrocopter mission to Titan in 2019; Google pulls 500 apps containing spyware backdoor; MIT drones tackle big warehousing issue; More White House resignations over "inattention to cyber security threats"; Scamwatch: NBN scams proliferate.