When Bob Brown spoke out against the invasion of Iraq in 2003, at the height of the war on terror, he was widely derided. He was mocked in the press, and even abused by a young Queensland MP, Peter Dutton.

But looking back, he says it’s one of his proudest moments.

Now, at 80 years old, Bob argues that speaking up in public and in private is crucial to pushing back against the strongman leaders of today – with their assaults on democracy and on the planet.

Today, lifelong activist and former Greens leader Bob Brown, on how to take a stand, and why he’s still optimistic about the future.

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Guest: Former leader of the Australian Greens Bob Brown