Prince Khalid bin Sultan : I did not engage Saudis in serious , credible way . All but one of September 11 hijackers were Saudi ##s . Saudi official ( CNN ) -- Saudi Arabia could have helped the United States prevent al Qaeda 's 2001 attacks on New York and Washington if American officials had consulted Saudi authorities in a `` credible '' way , the kingdom 's former ambassador said in a documentary aired Thursday . : Bandar 's comments should be taken ` ` with a grain of salt '' Bandar was the Saudi ambassador to Washington for nearly 22 years .
Prince Khalid bin Sultan : I did not engage Saudis in serious , credible way . All but one of September 11 hijackers were Saudi ##s . Saudi official : Bandar 's comments should be taken ` ` with a grain of salt '' Bandar was the Saudi ambassador to Washington for nearly 22 years .