Bill Browder, a businessman and fierce critic of the Russian president, details alleged plot in US court submissionThe Russian government has hatched a sensational plot to kidnap a prominent British businessman and smuggle him out of the country, it has been claimed.Newly lodged court documents, seen by the Observer, allege that Russian criminal syndicates working with the Kremlin planned to abduct London-based Bill Browder, who is mired in a wrangle with the Putin regime over the controversial death of a whistleblower.