Plague DNA Found in Ancient Tooth Suggests Black Death Isn't Dead Yet

You've undoubtedly heard about the Bubonic plague, but the chances of you knowing next to anything about the Justinian plague are significantly slimmer. That's because no one really knew anything about the Justinian plague—until recently, that is. Now, two ancient, plague-ridden teeth are finally teaching us a little… » 1/28/14 2:00pm 1/28/14 2:00pm