KENNY MacAskill's political career was on the line last night after the head of the FBI said that his decision to free the Lockerbie bomber had "made a mockery" of justice. FBI director Robert Mueller wrote to MacAskill to tell him he had given "comfort to terrorists" around the world as opposition MSPs planned to force a vote of censure that could result in his departure as justice secretary. Mueller called the release of Abdelbaset Ali al-Megrahi "inexplicable and detrimental to justice" as international fury grew over MacAskill's decision to free the mass-murderer convicted of killing 270 people two decades...