Second Amendment Roundup: S&W Sí, Mexico No

On June 5, in an unanimous decision by Justice Elena Kagan, the Supreme Court ruled in Smith & Wesson Brands, Inc. v. Estados Unidos Mexicanos that Mexico failed plausibly to plead that the American firearm industry aided and abetted unlawful sales routing guns to Mexican drug cartels. The decision not only adds teeth to the Protection of Lawful Commerce in Arms Act (PLCAA), it also recognizes that semiautomatic rifles like the AR-15 are in wide use by Americans, verifying that they meet Heller's common-use test.

While the Court does not expressly mention that PLCAA reaffirms Second Amendment rights, it does reference the preamble of the law, which explicitly set forth one primary purpose of PLCAA is to protect the Second Amendment rights of Americans. The Court then explained how the law