Walter pointed me to this Newsweek page by way of this blog post pointing to that blog post.
I suppose the Newsweek link will change, so here's what it looks like now. The snag of Newsweek's cover thumbnails in those other blogs is for real, as can be seen in the snag of the whole page below if you click on it (note the URL in the address bar):
It would be interesting to know Newsweek's rationale for the different covers. Maybe it has more to do with foreign readers not knowing of Annie Liebovitz and less to do with glossing over bad news for American readers. In any event, the difference in edition covers looks really bad, and it raises the question of what other differences exist between US and foreign editions.
I'm dropping that question, though, because the time I allotted to answering it has expired.