That's an odd disclaimer for someone who subsequently expends a thousand words, claiming just that.
Is America mistake free? Do we sometimes do bad things, with the intent to do good? Answer that honestly, and you will most likely agree with my view of this greatest country of all. It is important to look back, learn from our mistakes, and do better. That was the intention of the book by Pat Buchanan...IMHO. That is also the position, that I would take and demand that our government, and citizens should also. No more, and no less.