Discovered today that Croughton isn't, but Brimpton is.
Also drove past Kiddlington, the field next door (just North of the Runway) has huge "no-entry, Foot and Mouth Infected Area" signs around it, yet they were still operating from the airfield, just a few hundred meters away.
I'm sure if I'm wrong somebody will correct me, but it sounds very much like money has overriden civic duty at Oxford.
G