Conspiracy theories, extremism, and the tradwife subculture

It's summer on ABC Radio National so we're bringing you some of your favourite stories from the year gone by. Today, we're giving you a peek behind the curtain of secretive extremist subcultures. They're in our backyards, but most of us know next to nothing about them. We speak to a journalist who delved down the rabbit hole of the history of conspiracy theories in Australia. We also look into the tradwife subculture, and speak to a young mum who says the movement has been co-opted by alt-right radicals. And a de-radicalisation specialist explains why young people are sucked into extremism online.