The administration of U.S. President Donald Trump is considering a measure to block U.S. citizens and permanent residents from returning home if they are suspected of being infected with the new coronavirus, a senior U.S. official confirmed to Reuters. The official said a draft regulation, which has not been finalized and could change, would give the government authorization to block individuals who could “reasonably” be believed to have contracted COVID-19 or other diseases. Trump has instituted a series of sweeping immigration restrictions since the start of the coronavirus pandemic.