"I've heard him express regret at the contents of the memo," said a fellow legal scholar and longtime friend, who spoke on the condition of anonymity while offering remarks that might appear as "piling on." "I've heard him express regret that the memo was misused. I've heard him express regret at the lack of context — of the enormous pressure and the enormous time pressure that he was under. And anyone would have regrets simply because of the notoriety."