The death of UN secretary general Dag Hammarskjöld in a 1961 plane crash, was at the time, thought to be caused by pilot error. Now, with Dr Keith Suter part of a fresh UN investigation into the Swedish aristocrat's death, he discusses why anyone would want him dead - and who could have done it.

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Does Putin have Trump over a barrel? As investigations into the US President and Russia continue, Dr Keith discusses the turbulent history between America and Russia and why Trump seems so set on distilling the hostility between the two countries.

Slavery unfortunately still exists in many forms around the world - yes, even here in Australia. Dr Keith Suter chairs the Australian Anti-Slavery Society and discusses how the exploitation of workers has evolved over the years, common misconceptions about slavery and how we can put an end to it.

The World Economic Forum calls it the financial equivalent to climate change. Dr Keith Suter discusses the looming ageing crisis we can't continue to ignore. People in Australia and around the world are living longer lives than ever before - but how will we fund our newfound longevity?

When former C.I.A official Michael Morell named Pakistan as the most dangerous country in the world, it came as a surprise to many. Dr Keith Suter explains why, with a rapidly growing population, high unemployment rate, nuclear weapon possession and a military that calls the shots, Pakistan may soon prove a threat not only to itself but the rest of the world, too.

It's 1300 years old but many misconceptions still exist about the youngest of the old religions. Dr Keith Suter sheds light on the birth of Islam, the Sunni-Shia divide across the Middle East and the similarities between Christianity, Judaism and Islam. If you are experiencing a personal crisis, please call Lifeline on 13 11 14.

With the 70th anniversary of the Universal Declaration of Human Rights taking place this week, Dr Keith Suter discusses how the revolutionary mechanism for the protection of human rights came about and how what constitutes as human rights has evolved over the decades.

Alarming research shows that if you're living in America, you're more likely to be killed by a white, right wing, terrorist than you are by an Islamic terrorist. So why is the issue of white extremism being ignored in the White House? Dr Keith Suter discusses the upsurge of white supremacy and the problems it's posing in the United States.

It could be a Dan Brown novel. Back from the Club of Rome conference held deep in the confines of the Vatican, Dr Keith Suter explains how 50 years ago, the organisation uncovered eerily accurate information about how the planet could be impacted by the high rate of economic growth, resource depletion and environmental destruction.

He's fled the Vatican and now, Archbishop Carlo Maria Viganò is calling for Pope Francis to resign, accusing the leader of covering up cases of sexual abuse within the Catholic Church. Fresh off the plane from Rome, Dr Keith Suter discusses the explosive report written by the Archbishop and whether the Catholic Church can repair their reputation.