Today's WSJ has a story about Clostridium difficile, affectionately known as C. diff and literally translated as "difficult hidden thing." It's now reached the point where this intestinal superbug of sorts has infected more than 1% of hospital patients in the US. Spores can be destroyed by bleach but not by weaker cleaning solutions.
Hopefully unrelated is a piece telling us that forgetting can be good. So long as we remember the important things - sola gratia, sola fide, sola Scriptura, how to avoid superbugs, celebrating Veterans' day, etc. - we should be fine.