The "news" that people's private Facebook messages were appearing on their "walls" spread like wildfire earlier this week, but Slate reports that it's more meme than news. It all started in France, where users complained about finding private messages posted between 2007 and '09 on their profiles pages, but news outlets reported that "the issue is not systematic and affects only certain accounts." … [Read more...] about Facebook ‘privacy breach’: Misperception-cum-meme?