Another of Miller's websites, Neocon Europe, hosted material written by Kevin MacDonald, an American evolutionary psychologist who appeared as a witness for David Irving in his unsuccessful libel claim against Penguin Books and Deborah Lipstadt. Miller said he removed MacDonald's statements in November 2009, "as soon as I became aware that they had been posted on the site". In December 2009, Miller said: "Macdonald has been repeatedly and rightly (in our view) accused of racism. Moreover, the statements expressed core essentialist anti-semitic/racist ideas. This material should not have been posted and is in no way endorsed by this site. I apologise for, and deeply regret, this error."