(FILES) In this file photo taken on March 12, 2018 Britain's Home Secretary Amber Rudd arrives in Downing Street in central London on March 12, 2018, ahead fo a meeting of the National Security Council, as investigations continue in connection with the major incident sparked after a man and a woman were apparently poisoned in a nerve agent attack on March 4. - Rudd has been appointed the new Secretary of State for Work and Pensions, after the resignation of Esther McVey. (Photo by Tolga AKMEN / AFP)