A comprehensive review is to be held into how a suspected Chinese agent was able to get so close to senior British politicians, the security minister, Damian Hinds, has said. MI5, the domestic intelligence agency, on Thursday took the unusual step of circulating a warning to MPs accusing Christine Lee – a prominent London-based solicitor – of being engaged in “political interference activities” on behalf of China’s ruling communist regime. The Chinese embassy rejected the claims, accusing the authorities of “smearing and intimidation” against the Chinese community in the UK,…