Our lead photo for the story shows the set-up for this shot, which was taken with a $300 point-and-shoot digital camera. This photo was taken by car owner Robert Wilson at the exact moment I was shooting the story's lead shot. The image could've been made better by cleaning up the garbage in the background, but it still points out how relatively easy it is to take a good snap shot. Compare this shot to those in the feature elsewhere in this issue. Can you spot the erroneous tangency?