This is the illustration I see (I think it might be European):

http://news.bbcimg.co.uk/media/images/64639000/jpg/_64639977...

This is what very nearly every power outlet in the U.S. looks like, down to the color, vertical configuration, and flat-head screw in the center:

http://img.ehowcdn.com/article-new/ds-photo/getty/article/16...