Sky News Australia | Senator calls for social media watchdog Sky News Australia Updated: 16:35, Wednesday September 4, 2013. Senator calls for social media watchdog. Independent Senator Nick Xenophon has called for a social media ombudsman to crack down on internet trolls. Senator Xenophon said the appointment of a social ... Nick Xenophon's X factor makes the Greens cross in South Australia Xenophon to help Aussie satirists Take a chill pill, politicians: Xenophon |