New evidence strongly suggests that Barack Obama has been less than forthcoming about the role that unrepentant Weather Underground terrorist Bill Ayers may have played in choosing him to lead the Chicago Annenberg Challenge (CAC). Through a Freedom of Information Act (FOIA) request, I have obtained an e-mail message from former CAC executive director, Ken Rolling, to Warren Chapman and Anne Hallett, two of CAC's three co-founders. Bill Ayers was the third founder. In Rolling's message, sent the morning after I first requested access to CAC records housed at the University of Illinois at Chicago (UIC), he admits to avoiding a reporter's inquiries about who picked Obama to head CAC. Rolling also appears to prime Chapman and Hallett to avoid telling the press the whole story of how Obama was chosen, and provides them with an apparently incomplete story to use instead. Although it's too early to draw definitive conclusions from this evidence, it does raise serious questions about Barack Obama's own account of the process by which he was chosen as CAC board chair.