Why Murdoch sanctioned Regan's dismissal

Rupert Murdoch personally ordered the firing of Judith Regan, the publisher of the widely criticised OJ Simpson book, after he heard reports of a heated conversation in which Regan was said to have made anti-Semitic remarks. The comments were passed first to Jane Friedman, ceo of HarperCollins, and then to Murdoch. He immediately sanctioned Regan's dismissal, declaring that her remarks were "the final straw." (Via New York Times)