American spy on secondment to GCHQ was stabbed by alleged terrorist just three miles from its Cheltenham headquarters An American spy on secondment to GCHQ was stabbed by an alleged terrorist just three miles from its headquarters, it can now be revealed. Police believe a woman working for US intelligence was targeted by a knifeman in an alleged terrorist attack outside a leisure centre in Cheltenham. The victim is said to have been sitting in a car when the knifeman lashed out stabbing her in the leisure centre car park, before she managed to stagger out of the vehicle for help. Seriously wounded, she managed to raise staff at the sports centre which was due shortly to close to the public at the time of the attack on Thursday at 9.15pm. Yesterday the victim remained in a stable condition in hospital following surgery.