In 2011, "The Guardian" found evidence that the "Journal" had artificially inflated its European sales numbers, by paying Executive Learning Partnership for purchasing 16% of European sales. These inflated sales numbers then enabled the "Journal" to charge similarly inflated advertising rates, as the advertisers would think that they reached more readers than they actually did. In addition, the "Journal" agreed to run "articles" featuring Executive Learning Partnership, presented as news, but effectively advertising. The case came to light after a Belgian "Wall Street Journal" employee, Gert Van Mol, informed Dow Jones CEO Les Hinton about the questionable practice. As a result, the then "Wall Street Journal Europe" CEO and Publisher Andrew Langhoff was fired after it was found out he personally pressured journalists into covering one of the newspaper's business partners involved in the issue. Since September 2011, all the online articles that resulted from the ethical wrongdoing carry a "Wall Street Journal" disclaimer informing the readers about the circumstances in which they were created.