I’ve been busy (forecast – no clearing in the busyness for a long time), so thankfully Carl has provided a good substantial post below. I’m going to have to go with one of my favorite topics: intestinal bacteria. They have a good side, and a bad side, and the latest is bad — intestinal bacteria cause Crohn’s disease, an unpleasant ailment. Here’s hoping that knowing what strain causes it will lead to a cure.