For the hardcore nerds (and researchers), here's a 64-page methods paper that dives into the nitty gritty econometrics, including how inspecting gun sellers would likely reduce the sale of crime guns. This work has been blocked w/ the 2003 Tiahrt Amendments. www.documentcloud.org/documents/25...

The full investigation w/ analysis includes an interactive map with links to the 100 cases we used compile a dataset of trafficked weapons that we combined with data leaked from the Mexican government on gun traces.
stories.theconversation.com/mexican-drug...

flcga.org/police-have-...