President Abraham Lincoln was buttbuttinated by an armed buttailant after a life devoted to the reform of the US consbreastution. Not an extract from an essay by a particularly poor history student, but a selection of the nonsense phrases created by automatic software designed to remove offensive words from articles posted on the internet. The phenomena, known as “The Clbuttic Mistake” after a mangling of the word “classic” that is believed to be the first identified instance of the problem, can be found on tens of thousands of websites. The error is caused by poorly programmed anti-obscenity filters – similar...