rhydn:
That Democrat was trying to use a figure of speech to say that Guam's environment couldn't handle more personnel stationed there. Look at the clip in context. He meant to say what he did. It was not a slip of the tounge.
I never saw that Obama said anything about 57 states myself, but from another forum I gathered that he was trying to refer to the fact that he had visited 47 of the contiguous 48 states. Obviously, an exhausted man is capable of saying 57 instead of 48. (Amusingly, there actually are 57 divisions of the U. S.: the fifty states, DC, American Samoa, Puerto Rico, the U. S. Virgin Islands, the Northern Mariana Islands, Guam and the United States Minor Outlying Islands.)
As for Palin, first of all, she did not correct herself. She talked about helping North Korea twice before Glenn Beck corrected her, and then she didn't even acknowledge that she had made a mistake or slip-of-the-tounge. But her mistake is serious in that it shows the superficiality of her knowledge of the problem and of geography itself. If she had been educated about the issue, that is, the Korean conflict, for years and had brooded over its solution she simply never would have made that mistake. Such a mistake, in fact, would be impossible. If confusing two whole countries is a slip-of-the-tounge, doesn't that by definition mean that she knows of little difference between the two Koreas? I fear that compression is lacking more than anything, and certainly her comments that surrounded this 'slip' did not prove otherwise.