I'm not a big Bush fan, but, have any of you guys ever tried reading a long speech quickly? I have, and from personal experience, I know that sometimes it's easy to trip over the most simple, easy to pronounce words. You've said them a thousand times before, but for some reason, you don't end up saying them right. Or you say the wrong word instead.
Now imagine it's a fairly difficult to pronounce word. Should the president:
A. stop for a second and stare at it, think about the last time he said it, remember the way it's pronounced, and then continue or;
B. just use a phonetic guide to the word, say it, and continue on without pausing.
Seriously, this is ridiculous. Do me a favor, guys. If you speak a second language, but not complete fluently, find a long article written in that language, read it aloud quickly, and see how many pronunciation errors or stutters you make.
You might have heard those words a thousand times, and said them a hundred, but I guarantee you won't be able to pronounce them perfectly unless you stop every time you reach a difficult word.