Here is another case of identical AP stories but different headlines were chosen:
CNN: Gay marriage amendment proponents lose momentum
Fox: Gay marriage amendment not on fast track
Interesting choice of headlines. Fox’s headline seems to indicate that it is just not a high priority compared to other issues. CNN’s headline seems to indicate that support is maybe being lost for such an amendment. You can read and decide for yourself which is the better indicator of the article's content. Is either headline misleading? I think Fox’s headline is more true to the facts of the article. CNN's headline makes more of a judgment of the facts. The word “momentum” is not used in the article.
Links to the articles: