Some pretty credible reporting indicates that the C.I.A.'s destruction of at least two videotapes documenting the interrogation of two Al Qaeda operatives has little to do with torture and everything to do with the Saudis.
We already know that 15 of the 9/11 hijackers hailed from the oil-rich kingdom. Author Gerald Posner believes the videotapes contain evidence that three Saudi princes acted as their sponsors.
Zubaydah, wounded when he was captured in Pakistan, was fooled in a fake flag operation to believe that the Saudis held him. Instead of being afraid of the ‘Saudis,’ he demanded to talk to three Saudi princes (one, the nephew of the King, who happened to be in the U.S. on 9/11). He gave his interrogators the private cell phone numbers of all 3. He did the same regarding the chief of Pakistan's air force.
After the U.S. told the Saudis and Pakistanis of Zubaydah's finger pointing, all four men had tragic 'accidents.' The King's nephew died of complications from liposuction at the age of 43. A day later, the 41 year old Prince named by Zubaydah died in a one-car accident on his way to the funeral of the King’s nephew. The third named prince, age 25, died a week later of "thirst," according to the Saudi Royal Court. And shortly after that, the chief of Pakistan’s air force died when his plane exploded with his wife and 15 of his top aides on board.
I'm usually very skeptical about such stories, but this sounds entirely plausible.