The Flying Scotsman Alex Salmond's colleagues decided it would be a worthy gesture to name a railway locomotive after him, so an official went to the National Railway Museum at York to investigate the possibilities. ""There are a number of locomotives at the NRM without names,"" a consultant told the official, but they are mostly freight locomotives."" ""Oh dear, a freight locomotive is not very fitting for a party leader,"" said Sir Humphrey. ""How about that big green one, over there?"" he sai…