An MI5 agent was allegedly recruited by a terrorist mastermind in Syria . He was then sent back to Britain in a plot to launch an attack against MI5 . An undercover operation was launched to try and track any similar plots . The man who infiltrated the group, known as Abu Hamza al Britani ( aka Omar Bakri Mohammed ) is now serving life for his role in planning attacks on British targets including London's Tube system.
An MI5 agent was allegedly recruited by a terrorist mastermind in Syria . He was then sent back to Britain in a plot to launch an attack against MI5 . An undercover operation was launched to try and track any similar plots . Scotland Yard has arrested the man and he remains in police custody .