I love the way that aircraft which have been diverted to the UK's number 2 airport for security related matters are parked on R/W 03/21 just a few yards from Prestwick Centre, which controls around two thirds of the UK FIR plus half the North Atlantic, so that in the event of an explosion, the collateral damage takes out a major piece of European infrastructure. The risk is obviously considered sufficient for police to stop vehicular traffic on adjacent roads, but not enough to protect NATS employees and the UK's ATC operation.