Most people don't bother to really reexamine their opinions until something external strikes a chord with them personally. That is why you find people often change their thinking after having children, caring for an aging parent or experiencing a major illness.<quoted text>But doesn't it say something about him that he only re-examined his opinion because it affected his life? What does that say about his decision making ability when it comes to other issues that he will not have hands on experience with?
I am impressed because of how well and how publicly he expressed his change of opinion. It is now a more educated position than previously.