Oh dear Mr Cameron, perhaps you should consider the idea in my above post?
Dude
I am told by a recently PVR'd Group Captain who had been at MOD for > 8 years that the question regarding bringing back the Harrier (for Libya) WAS asked by Cameron etc, the answer from the MOD was that it was not possible... and this was back in March/April time. The reasoning being that the training required to bring people back, train them up etc would have taken too long.
May or may not be true, but (IMHO) the Group Captain in question was a decent bloke that had no reason to make it up. He was head hunted recently, offered a civilian job on the Monday, PVR'd on the Tuesday, and sat in his new office 12 days later.