Today in Focus

Rescue efforts are under way in Venezuela after two powerful earthquakes caused buildings to collapse and killed at least 164 people, and there are fears the death toll could rise significantly. A state of emergency has been declared by the country’s interim leader, Delcy Rodríguez, who said 971 people have been injured and more casualties are expected. Lucy Hough speaks to Latin America correspondent Tom Phillips – watch on YouTube. Help support our independent journalism at theguardian.com/infocus

Jenny Kleeman investigates ‘Biotech Barbie’ Cathy Tie, the controversial entrepreneur hoping to revolutionise human reproduction by letting parents edit their embryos. Help support our independent journalism at theguardian.com/infocus

A shocking report into the biggest ever maternity care scandal in the NHS has revealed more than 500 mothers and babies died or were harmed as a result of inadequate care in Nottingham. The review, led by the senior midwife Donna Ockenden, found there had been a dismissive attitude to women’s concerns, failures in maternity care, staff shortages, a toxic culture and racism at Nottingham University hospitals NHS trust. Lucy Hough speaks to the Guardian’s UK health and inequalities correspondent Tobi Thomas – watch on YouTube. Help support our independent journalism at theguardian.com/infocus

A decade after Brexit, the UK simply can’t shake the legacy of the referendum. But with shifting public opinion and the rise of Andy Burnham, could Britain be plotting a path back to the EU?. Help support our independent journalism at theguardian.com/infocus

Europe is dealing with a debilitating heatwave, with schools closed, trains cancelled and France holding an emergency meeting after heat-related deaths. António Guterres, the UN secretary general, is urging the world to act on fossil fuels as the continent braces for record-breaking heat. Lucy Hough speaks to Europe environment correspondent Ajit Niranjan – watch on YouTube. Help support our independent journalism at theguardian.com/infocus