In 2011, on the tenth anniversary of the terrorists attacks on New York and Washington, Summers and Swan published "The Eleventh Day: The Full Story of 9/11 &amp; Osama bin Laden". Their book notably debunked various &lt;a href="9/11%20conspiracy%20theories"&gt;9/11 conspiracy theories&lt;/a&gt; that accused the Bush administration of involvement with the attacks. According to a review in The Telegraph [UK], the authors’ "principal criticisms are that the Bush administration was asleep at the switch on 9/11; that vital intelligence was ignored; that the FBI and CIA did not share information; and that Saudi Arabia was intimately connected to al-Qaeda and is sometimes overindulged by the US." The reviewer argued, however, that there was "no real evidence" for the claims of Summers' and Swan's sources that the CIA negotiated with Osama bin Laden prior to those attacks, or that the Agency attempted to recruit two of the hijackers as agents.