carrying refugees from afghanistan has landed at a uk airport. president biden says us troops could remain in afghanistan beyond the end of august, passing his deadline for withdrawal. labour has accused the foreign secretary, dominic raab, of a dereliction of duty after reports he declined to phone his afghan counterpart to seek help airlifting interpreters out of afghanistan. but the government has defended his actions. the only problem last week was not a phone call to an afghan government that was melting away and had almost didn't have any h. the number one challenge at the end of last week was whether the airport would continue to fly, allow planes to fly out, and those people we were getting up, would they be allowed to getting up, would they be allowed to get out? the largest survey of covid infection in the uk has found that both the pfizer and astrazeneca vaccines are still offering good protection against the delta variant.