Former MI5 agent David Shayler stated that the British security services were warned of a plan to attack the embassy in advance, yet took no action. The Crown Prosecution Service later confirmed a warning had been received, though it related to a plan by a group unconnected to those who were convicted of the bombing. The Home Secretary at the time, Jack Straw, said that Shayler's interpretation of events was understandable, but concluded that MI5 still could not have prevented the bombing.