Hugh Mackay is concerned that, despite decades of economic growth, Australia is in the grip of an epidemic of anxiety and depression.

Social media creates a parallel universe where individuals living suburban lives in western cities are drawn into radical extremism. Understanding how this works is vital to countering home grown terrorism.

Algae is the new ‘green gold'. On Big Ideas, an expert panel describes the potential of algae as a game-changing sustainable resource for numerous industries.

Does foreign aid really lift people out of poverty? With billions of dollars flowing from rich to poor nations we review how the money is spent and whether it's achieving its goals.

A panel of experts discuss citizenship, parliament, and the Australian constitution. Should we change Section 44 and allow dual citizens to stand for election? What is the true essence of citizenship?

Fred Chaney, formerly co-chair of Reconciliation Australia, calls for an end to heavy-handed government policies which disempower remote communities and ignore indigenous culture.

Indigenous singer-songwriter Archie Roach talks about his life as a child of the stolen generations and how it's shaped his life and music.

The monsters we create in our classical literature and modern pop culture say a lot about ourselves and our society. They reflect power dynamics, prejudges and irrational fears of their time.

Elijah was shot and killed by police in a NSW country town in 200. He was 24 and had a mental illness. Was his death avoidable?

With Brexit and Trump's tariffs on steel, the European Union believes that protectionism threatens global free trade. The EU is negotiating free trade agreements with Australia and other countries in our region.

The EU trade commissioner was in Australia recently to talk up the benefits of an EU-Australia trade deal.