The AI tech involved in the MCG gun scare

Last week, two men allegedly each carrying a gun managed to get into the MCG for a packed AFL match. So how could that have happened in Australia, where gun control is so tight and where security screening should be amongst the best in the world?  Today, investigative reporter Josh Roberston on what unfolded and whether a new AI security system at the country’s largest stadium is really fit for purpose.  Featured:  Josh Robertson, ABC investigative reporter