The parliamentary report featured a handful of cases of mistaken identity, the most prominent of which was the ordeal of Maher Arar, a Canadian citizen suspected of terrorist ties and packed off to his native Syria in 2002.

“But the Canadians say there’s absolutely no evidence,” countered Edward J. Markey, D-Mass.

“I would certainly not apologize to him, sir.”

The CIA, he added, is not “in the business of cleaning up afterwards. We’re in the business of pre-emption.”

But, Delahunt persisted, “What about those who are clearly eventually determined to be innocent?”

“Mistakes are made, sir.”

“Mistakes are made.”

“That’s right,” Scheuer said. “They’re not Americans, and I really don’t care.” He spread his arms, smiling. “It’s just a mistake.”

Maybe I can't handle the truth, but is it really necessary for you to be an asshole?

It gets even better...

Not even John O’Neill, the late, legendary FBI counterterrorism agent who died in the World Trade Center inferno, escaped one of Scheuer’s shots.

Delahunt reminded Scheuer that the CIA man had once said O’Neill “was interested only in furthering his career and disguising the rank incompetence of senior FBI leaders.”

“Yes, sir,” said Scheuer, peering back through light-reflecting glasses.

“I think I also said that the only good thing that happened to America on 11 September,” he said, “is that the building fell on him, sir.”

This entire situation is proof that you can say absolute anything, as long as you end it with "sir".

CQ Homeland Security - A CIA Man Speaks His Mind on Secret Abductions