Never believe it until it has been officially denied. And the alleged deal between London and Tripoli has now been officially denied, at least by London. (It's a different story in Tripoli.) There is no apparent shortage of trade benefits.
But what about the deal between London and Edinburgh? How did the UK Government persuade the Scottish Government to permit the release of the dying prisoner? Sure, it got the Scottish legal establishment out of a hole, so the SNP administration would have been inclined to play along. On the other hand, there was an excellent chance of seriously embarrassing London. Furthermore, the SNP would certainly have needed a serious incentive to expose itself to criticism from the US of A.
So, if I may extend this conspiracist fantasy a little further, what made Mr Salmond decide to line up with the undoubted (if seldom expressed) wishes of Mr Brown's government that a line should be drawn - once and for all - under the Lockerbie atrocity?
Will we ever find out?