As the US grapples with the world's worst coronavirus outbreak, a new threat is emerging as Asian giant hornets – known as “murder hornets” due to their lethal sting to humans – are gaining a foothold in the country. After they were first found in Washington State in May this year, the 2-inch (5cm)-long hornets have now been trapped for the first time – giving officials an indication – firstly that their traps work, and secondly of where nests could be situated. Now authorities in Washington State have until mid-September to try and eradicate the invasive species before the breeding...