http://www.cnn.com/2005/WORLD/meast/10/13/alqaeda.letter/index.html?section=cnn_topstories
"Al Qaeda in Iraq said Thursday a letter purportedly from Osama bin Laden's top lieutenant to Abu Musab al-Zarqawi is a fake, according to a statement on several Islamist Web sites.
The terrorist group denied the letter was from al Qaeda and claimed it was 'another fabrication ... by the Black House,' using its term for the White House."