MI5 strongly criticised over KGB agent |
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| MI5 has been strongly criticised by MPs over the way it handled the Melita Norwood spying scandal. The 87-year-old was publicly unmasked as a former KGB agent last year. But it emerged that MI5 had known of her activities for six years before telling ministers. The BBC's Jon Silverman reports. |
| Grandmother spy case under scrutiny | |
| Spies who betrayed Britain |