Afghanistan's second city falls to Taliban

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The US sends 3,000 troops to Kabul to evacuate citizens after Kandahar is taken by the Taliban. Covid cases and hospitalisations are high in the Deep South of the United States, where vaccine uptake is low among some religious communities. We hear from anti-vaxxers, bereaved families and intensive care staff. And the asteroid collision is a staple of sci fi movies - but what's the reality as asteroid Bennu makes its way towards earth?