That Zarqawi letter wasn’t legit. From the AP:
CAIRO, Egypt (AP) In a June 14 story, The Associated Press reported that Islamic Web sites posted the text of a letter purportedly to Osama bin Laden from the leader of militants in Iraq saying his fighters were being squeezed by U.S.-led coalition troops.
A comparison subsequently showed that the purported letter from Abu Musab al-Zarqawi was the same text intercepted and released in February by the U.S.-led coalition in Iraq.
The text refers to insurgents’ efforts to seize control of Iraq ”four months before the formation of the promised Iraqi government ….” This appears to be a reference to the coalition’s turnover of control planned June 30 rather than to Iraqi national elections in January 2005.