These are said to be less invasive than body scanners in other countries but will still improve security for flight passengers and crew. However critics say the new system recently announced by the Australian government promotes a false sense of security and may not be the answer to safety concerns.

This week Adelaine Ng of Radio Australia and I chat about how airport security systems will continue to change and how one of these evolutions may involve 3 tunnels passengers and staff walk through as well as other possible security alternatives and a glance at how we might be using airports in the future.

Listen now: