Divining the meaning of Xi Jinping's latest leadership purge

China’s president Xi Jinping has made a startling power play, purging the military’s top generals including one of his closest confidants on charges of corruption. Alone at the top of the world’s largest army, many now wonder what this means for President Xi’s ambition to retake Taiwan. Senior officials In Iran’s ministry of health say as many as 30,000 people may have been killed during a month of deadly protests. The stories emerging from the Islamic republic are harrowing. Dr Farnoush Nia is an Iranian born Australian doctor, who says there's evidence that people have been snatched from hospital beds and operating theatres and later killed by security forces. She's one of more than 100 health practitioners urging the Australian government to do more to ensure medical neutrality.  American twins Eric and Matthew Gillbertson are setting out not just to climb the world’s highest peaks in every country, but also confirm their heights and in some instances amend their measurements.