Refusing to give a job to Chinese and Russian people in companies that deal with issues of national security and require security clearance is not racist, an employment tribunal has ruled. It is not discriminatory to stop people from “hostile” states taking up certain jobs in the defence sector because of the risk to British security, the judgment says. The ruling relates to the case of a Chinese scientist who accused a British AI company with ties to the UK and US defence departments of racism after she was not…