Russian puppet-master behind UK spy ring 'may have worked with MI6 and US intelligence' before fleeing to Moscow
Jan Marsalek could have been the 'greatest asset' for western intelligence agencies until he was implicated in Germany 's biggest ever fraud, security sources have suggested.
Jan Marsalek could have been the 'greatest asset' for western intelligence agencies until he was implicated in Germany 's biggest ever fraud, security sources have suggested.
