Well, all this proves is that John Edwards is a human being, and has human failings. This affair is not really one that should lend itself to levity. In an ideal world he would have led a celibic life while his wife was fighting her battle against cancer. However, this is not an ideal world. At best, he and his family are going to go through a time of great difficulty.
They deserve our prayers, and let us hope he will emerge from this a chastened and wiser man.