Campaigners have spent years demanding that the UK exonerate computing legend Alan Turing, and theyre finally getting their wish. Queen Elizabeth II has just used her royal prerogative to pardon Turing, 61 years after an indecency conviction that many now see as unjust. The criminal charge shouldnt overshadow Turings vital cryptoanalysis work during World War II, Justice Secretary Chris Grayling said when explaining the move.