From pollution to policing – can Sadiq Khan clean up London?

Australia suffered one of the deadliest massacres in its history on Sunday when two gunmen opened fire on a Jewish celebration at Bondi beach in Sydney. At least 16 people died, including one of the alleged gunmen, with more than 40 wounded. The victims include a 10-year-old child, a Holocaust survivor and a London-born rabbi. The alleged gunmen behind the attack are a father and son, who are suspected of using legally obtained firearms to commit the massacre. One of the suspects, Naveed Akram, 24, was known to New South Wales police and security agencies. The Australian prime minister, Anthony Albanese, is facing questions about gun law reform and security failings as the country reels from the attack. Lucy Hough talks to the Guardian Australia senior reporter Ben Doherty – watch on YouTube. Help support our independent journalism at theguardian.com/infocus

Has east Asia replaced the US as the world’s cultural centre? With Jeff Yang. Help support our independent journalism at theguardian.com/infocus

The Free Birth Society was selling pregnant women a simple message. They could exit the medical system and take back their power. By free birthing. But Nicole Garrison believes FBS ideology nearly cost her her life. This is episode one of a year-long investigation by Guardian journalists Sirin Kale and Lucy Osborne Listen to the full series from The Guardian Investigates podcast. Help support our independent journalism at theguardian.com/infocus

A year-long investigation into the Free Birth Society reveals how mothers lost children after being radicalised by uplifting podcast tales of births without midwives or doctors. Lucy Hough talks to the investigative correspondent Lucy Osborne about her reporting – watch on YouTube. Help support our independent journalism at theguardian.com/infocus

Are US-style Christian politics finally taking root in the UK? With Lamorna Ash. Help support our independent journalism at theguardian.com/infocus