President Bush in his last press conference said,
"There have been disappointments. Abu Ghraib obviously was a huge disappointment during the presidency. Not having weapons of mass destruction was a significant disappointment. I don't know if you want to call those mistakes or not, but they were -- things didn't go according to plan, let's put it that way."
This sound like a child who is disappointed with his Christmas presents. There is a huge difference between admitting a mistake and describing events following a decision as disappointments. He still doesn't get it. People who can't learn are a huge disappointment.