A group of so-called 'ISIS brides' and their children have returned to Australia.

There's been fierce debate about how to handle the cohort who have been living in refugee camps for years. We speak to a leading counter-terrorism expert about what their return could mean for national security.

And just a few months ago, Charlotte Mortlock was a strong supporter of the Liberal Party and leading a network aimed at encouraging more women to join. 

Now she's trying to build a new party, says she has no hope for the Liberals. So what's changed? 

Listen now:

01:09 - What happens now for 'ISIS brides' and children

11:43 - Quitting the Liberals and starting a new political movement

Guests: 

• Ben Saul, United Nations Special Rapporteur on counter terrorism and human rights
• Charlotte Mortlock, founder, Something Better

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