When MSNBC discarded Keith Olbermann, al-Qaida mourned. So reports David Ignatius, the Washington Post columnist who has gained exclusive access to some of the documents recovered from Osama bin Laden’s compound in Abbottabad, Pakistan. In his Wednesday column in the Washington Post, Ignatius reported on the details of a 21-page letter to bin Laden written by al-Qaida media adviser Adam Gadahn. Though the letter was undated, Ignatius says that it was likely written sometime after November 2010. Laying out the current media landscape for the now waterlogged terrorist kingpin, Gadahn, an American-born Jewish convert to Islam, lamented the “firing” of...