Why would the White House heap blame on the movie — indeed, insist that it is the sole cause of the violence — when officials don’t actually know that to be true? There are, perhaps, two reasons. One is that the administration has put an enormous amount of faith in the idea that Arab Spring uprisings will lead to democracy in much of the Middle East. Current events suggest that faith might be misplaced. For the administration, blaming the movie is easier than admitting they were wrong about something so big and important.