The dollar figure of detaining young people has shot up dramatically in the last five years, despite the actual number of people in the system declining. So if getting to these kids too late is costing us both financially and in community safety, just how early do we need to be intervening? Report author Dr Caroline Croser-Barlow and Emeritus Professor Ross Homel who led a decades-long early intervention and early prevention program in Queensland discuss. 

Right now, there's a fierce debate about what universities are for. Are they just factories for job-ready graduates? Or should they also be breeding grounds for big ideas, for curiosity, for critical thinking? Historian and academic Frank Bongiorno discusses what role universities play in modern Australia. 

ABC Radio National has launched its Top 100 Books of the 21st Century. We're asking some notable readers to tell me about the book that changed their life, starting with comedian Lizzy Hoo. 

Former AFL player Mitch Brown has publicly identified as bisexual becoming the first player in the code's history to do so. The official response from the AFL has been mixed, so Dr Victoria Rawlings is asking what would it take to create a world where people no longer need to come out?