Criticism of Wikipedia hands—but they had agreed that the company would not be allowed to review his writing before submission". Jimmy Wales, also quoted by CBS, expressed his disapproval of Microsoft's involvement: "We were very disappointed to hear that Microsoft was taking that approach". In the essay, "Can History be Open Source?: Wikipedia and the Future of the Past" (2006), the academic historian Roy Rosenzweig criticized the encyclopedic content and writing style used in Wikipedia, for not distinguishing subjects that are important from subjects that are merely sensational. That Wikipedia is "surprisingly accurate in reporting names, dates, and events in U.S. history", and
Jimmy Wales his developmental work on the Wikipedia project. He has rejected the notion that his role in promoting Wikipedia is altruistic, which he defines as "sacrificing your own values for others", stating that the idea of "participating in a benevolent effort to share information is somehow destroying your own values makes no sense to me". On December 11, 2007, Wales testified before to the United States Senate Committee on Homeland Security and Governmental Affairs. He also submitted written testimony to the Senate Committee entitled "E-Government 2.0: Improving Innovation, Collaboration and Access". Senator Joseph Lieberman introduced Wales by stating: Wales's testimony is