Gordon Brown may have made an apology, but UK government recently refused to posthumously pardon Turing.
http://www.forbes.com/sites/carolpinchefsky/2012/02/07/uk-de...
The argument for not pardoning is mostly reasonable, I think. It was a crime at the time, and you can't go around posthumously pardoning everyone retroactively whenever the law catches up to society a generation or two later. (Edit: I still think what they did to Turing was wrong, of course.)