SA Premier Peter Malinauskas’s push to ban children under 14 from social media has been bolstered by the US’s top doctor, who urged government action to tackle “a medical emergency among young people”.  Aviation experts have begun an investigation into how a Singapore Airlines flight dropped more than a kilometre in less than a minute, leaving one man dead and other passengers “doing somersaults” as the plane plunged.    One of Channel 9’s on-air stars has revealed her former boss Darren Wick sexually harassed her in public, groping her and breathing heavily down her neck.    Shocking allegations of gender selection within QLD’s embattled fertility industry are being investigated by the health ombudsman.  See omnystudio.com/listener for privacy information.