If you spend money/time on Sada's book, keep in mind during a FOX interview with Hannity and Colmes in 2006 to promote his book regarding those Iraqi WMD Sada claimed were moved, he said.....
"I know it because I have got the captains of the Iraqi airway that were my friends, and they told me the weapons of mass destruction had been moved to Syria..."
-Wikipedia
He "knows" it because someone told him?
"If you don't think too good, don't think too much"
-Ted Williams