As a mystery writer, I have a dilemma: I love the old-fashioned mysteries. You know, the ones. The master detective solves the murder simply by talking to the suspects while peering at the crime scene with his magnifying glass. All the while, he is on his pipe and examining the evidence without gloves. Then, when he identifies the culprit, the killer confesses and goes away to jail because the detective’s deduction of the evidence is so overwhelming that it is useless to deny it.