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Braided rivers are a stunning and rare global phenomenon – waterways that change direction and size, weaving multiple dynamic patterns influenced by rain and glacial shifts.Reged Ahmad speaks to New Zealand correspondent Eva Corlett about how the waterways are now under threat as communities around them have sought to tame and control their flow, leaving Māori tribes to watch the ecological impact with horror. You can support the Guardian at theguardian.com/fullstorysupport

After the death of the Warlpiri girl Kumanjayi Little Baby, the Northern Territory government announced a sweeping review of its child protection system. The terms of the inquiry, however, have been heavily criticised by First Nations and justice organisations. Prof Marcia Langton reads a piece she co-authored with Prof Fiona Stanley in which they argue that authorities are repeating mistakes of the past and failing Aboriginal children Warning: This episode contains references to Indigenous Australians who have died

In his biggest address so far, shadow treasurer Tim Wilson described the federal budget as an ‘economic earthquake’ at the National Press Club. He speaks to political editor Tom McIlroy about Paul Keating’s criticism of the Coalition’s response to Labor’s tax reforms and defends Angus Taylor’s controversial migration policy – which links housing completion to immigration and restricts access to welfare support

In this special recording of the Barries in front of a live audience of 600 at the Sydney Writers’ festival, Barrie Cassidy and Tony Barry discuss why budget criticism is hurting Labor more than many anticipated. They also examine the Coalition’s many leadership changes and ask who could take the reins next Get our breaking news email, free app or daily news podcast

Host Reged Ahmad and the Guardian’s US site editor Jonathan Yerushalmy examine Republican Thomas Massie’s loss in the Kentucky primary after a vicious attack campaign fulled by Donald Trump. They also look at the president’s penchant for posting directly to social media and the woman who pens the posts