Fig. 2
From: Firearm laws and the network of firearm movement among US states
Movement of crime-related firearms across states (2010–2017), when the annual average is 100 or greater firearms. The arrow indicating movement from Arizona to California and from Indiana to Illinois are obscured due to the thickness of the line. We constructed the figure using igraph version 1.2.4.1 and maps version 3.3.0 for R