Russia is to expel 23 British diplomats amid tensions over the nerve agent attack on a former spy and his daughter in the UK. The Russian foreign ministry said staff from the UK's Moscow embassy would be expelled within a week. It also said it would close the British Council in Russia, which promotes cultural ties between the nations, and the British Consulate in St. Petersburg. The move comes in response to Britain's decision to expel 23 Russian diplomats.........