Smith & Wesson Brands, Inc., et al., Petitioners v. Estados Unidos Mexicanos

The Supreme Court held that the Protection of Lawful Commerce in Arms Act (PLCAA) bars Mexico's lawsuit against U.S. gun manufacturers for facilitating cartel violence. The Court ruled that Mexico failed to plausibly allege that the manufacturers intentionally aided and abetted illegal gun trafficking, a necessary requirement to bypass the Act's liability protections.