Jack FenwickPolitical correspondentA new artificial intelligence tool designed to crack down on fraud has helped the UK government recover almost £500m over the last year, the BBC can reveal.More than a third of the money clawed back related to fraudulent activity during the Covid-19 pandemic, with other cash being recouped from unlawful council tax claims and illegal subletting of social housing.The government will announce later that a new AI tool which has helped to identify the fraud will no...