Unmasking the Australian spy who sold secrets to Russia, Four Corners

For years during the Cold War the KGB s only access to US and UK secrets was through an Australian spy. The ASIO mole handed over highly classified information for wads of cash, but none of his colleagues suspected a thing. After the Soviet Union s collapse, information sourced through Russian KGB defectors sparked the most extensive mole hunt in ASIO s history. Four Corners reveals the identity of the traitor, and the full extent of his betrayal.