this is a wonderful discussion on the powell presentation. seems to me a thorough and fair treatment- so give a read.
a highlight:
"why hasn't the United States bombed the so-called Zarqawi camp shown in the slide? The administration obviously knows where it is, and Powell spoke of it in the present tense. If it is an outpost of chemical weapons and explosives development for al Qaeda, why not take it out, especially since it is situated within a part of Iraq uncontrolled by any national government? The United States has fighter jets patrolling the northern no-fly zone in Iraq. Cruise missiles can easily reach the area. This part of Powell's briefing reinforced a crucial point: al Qaeda is the pressing danger at the moment"

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