An eight-year-old boy took an illegal replica assault rifle to a Sydney school, forcing a class into lockdown and sparking a police investigation into how it ended up in the boy’s hands.  Elite private schools are exempting poorly performing students from national NAPALN tests in a bid to improve their overall scores, a scathing academic report has revealed.  Queensland’s political leaders are bitterly divided over the state’s nuclear future, with all levels of government at odds over the safety and economic viability of the controversial energy plan. Cameras to catch Adelaide drivers distracted by mobile phones have been switched on, with hefty fines for those caught breaking the law.  See omnystudio.com/listener for privacy information.