It has been a long week. I think we all need some cheering up, which is why I asked:
Kelly Kleba said pictures of puppies help cheer her up (I mean, who doesn't get cheered up by cute puppies?), but I explained that this column doesn't have space for too many pictures.
Other cheerful things:
The ones Washington University researchers are experimenting with to see if they can detect bombs. No, really. See Friday's paper.