**EXCERPT** BAGHDAD, Feb. 9 -- On Nov. 3, U.S. soldiers raided a safe house of the insurgent group al-Qaeda in Iraq near the northern city of Balad. Not a single combatant was captured, but inside the house they found something valuable: a diary and will written in neat Arabic script. "I am Abu Tariq, Emir of al-Layin and al-Mashadah Sector," it began. Over 16 pages, the al-Qaeda in Iraq leader detailed the organization's demise in his sector. He once had 600 men, but now his force was down to 20 or fewer, he wrote. They had lost weapons and allies....