I freely admit I could be wrong about this. But I do note with interest (but without a formal allegation) that the very first source to claim the Iraqis were behind OKC appears to have been a tipoff from Saudi intelligence (to Vincent Cannistraro) on April 19, while at that exact moment, prominent Saudi businessman Khalifa was sitting in a U.S. prison, after spending the previous 6 years funneling cash from wealthy Saudis to al Qaeda.
And of course, as the story points out, Khalifa was extradited to Jordan days later.
jmb