UK officials are monitoring social media posts by Elon Musk and others as a possible security risk. The monitoring is being carried out by a team in the Home Office's Homeland Security group, which is responsible for reducing national security risks and, according to a government website, "focuses on the highest harm risks to the homeland".

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Musk's escalating criticism and mocking of European leaders and governments, which he has done repeatedly via X, the social media platform he owns, has sparked a backlash from