As last year drew to its close, a story in The New York Times reported a bit of encouraging news. In what is by far the largest U.S. city, population nearly 8,364,000, the total of 466 homicides in 2009 was the fewest in any year since 1963. Doing the math — dividing the number of people by the number of murders — it meant that one New Yorker out of every 18,000 was at risk of being slain. It piqued my interest, so I decided to run the numbers for some other major... (GunPolicy.org)