This is a great audio summary of the Obama-McCain-Bush battle of words.
As Ed Morrissey points out, all of this started because Obama said that he would meet with certain characters without preconditions.
At the end of the day, Obama is now advocating the same approach that the Bush administration (and every other president) has followed since the hostage crisis.
Ed's last point is that Obama is making rookie mistakes. I agree with Ed. I'm not sure how the super delegates are going to handle this! (Rookie Mistakes: Obama Owns Appeasement)