Orkin, the pest control and extermination service, has just released a ranking of the top U.S. cities for bed bug infestations. Some of the largest cities, New York, Los Angeles, and Chicago, are near the top of the listfor bed bugs. That makes sense. Nashville came in at 30 on the bed bug ranker. Of course, people around here are freaking out. I was concerned!  But then I saw that some smaller cities, like Davenport, IA, and Champaign, IL, appeared higher than we did. That made me feel better…