The Bank of England must plan for a financial crisis being triggered by an official announcement confirming the existence of alien life, one of its former policy experts has claimed. Helen McCaw served as a senior analyst in financial security at the UK’s central bank, preparing for events that could impact the economy. She has now written to Andrew Bailey, the Bank’s governor, urging him to organise contingencies for the possibility that the White House may one day confirm we are not alone in the universe. McCaw, a Cambridge graduate, believes a declaration of that magnitude would send shockwaves through...