Gun traffickers have quietly moved what they are saying is an unprecedented variety of weapons from the US to Mexico. Our reporter Paulina Villegas adopted the path of those weapons.
By Paulina Villegas, Rebecca Suner, Jon Miller, Gabriel Blanco, Joey Sendaydiego, Stephanie Swart, Paul Ratje for The New York Instances and Guillermo Alvarez
March 17, 2026
