Freight drivers are refusing to deliver goods into South Australia while Victorian truckies are threatening to blockade state borders in response to restrictive new Covid-19 rules.The national rail safety watchdog has completed its investigation into a terrifying malfunction at one of Adelaide’s busiest level crossings, but is refusing to release the full report.A tribunal has heard how a nurse with a history of drug abuse took a syringe of anaesthetic from her workplace and crashed her car on the way home, then tried to blame her misconduct on a colleague.And in sport, basketball star Liz Cambage may never play for Australia again after a tumultuous 24 hours during which she walked away from the Opals camp in Las Vegas before withdrawing from the Tokyo Olympics. For updates and breaking news throughout the day, take out a subscription atadvertiser.com.au