Mayors Use Junk Science in Gun Trafficking Report.

New York Mayor Michael Bloomberg's group Mayors Against Illegal Guns says Virginia ranks third highest in trafficking firearms used in crimes in other states.  The report released today is based on 2009 crime gun trace data from the Bureau of Alcohol, Tobacco, Firearms, and Explosives (ATF), data that even the ATF says is not intended to be used for the purpose MAIG uses it:

Firearms selected for tracing are not chosen for the purposes of determining which types, makes or models of firearms are used for illicit purposes.  The firearms selected do not constitute a random sample and should not be considered representative of the larger universe of all firearms used by criminal, or any subset of that universe (emphasis added).  Firearm are normally traced to the first retail seller, and sources reported for the firearms traced do not necessarily represent the sources or methods by which the firearms in general are acquired for use in crimes.

If Virginia truly is the number 3 source for firearms used in crimes in other states, then why did we pass handgun rationing (one gun-a-month) in 1993? I thought one gun-a-month was supposed to stop gun trafficking from Virginia?