Four Corners: June 19

Monday’s Four Corners, “Traitor” by Sally Neighbour and Margot O’Neill, reveals one of Australia’s best kept spy secrets.

The program will expose how a senior officer at our national spy agency stole and sold highly classified intelligence to Russia’s KGB for at least six years.

Four Corners has uncovered the details of the breath-taking betrayal that jeopardised Australia’s security relationship with two of our closest allies — the United States and Britain.

Reporters Sally Neighbour and Margot O’Neill forensically thread the pieces of information gathered over decades of investigations, to uncover the truth about one of this country’s most grievous security breaches.

Monday 19th of June at 8.30pm on ABC.