WASHINGTON (TNND) — The Supreme Court blocked a $10 billion lawsuit Mexico filed against major U.S. gun manufacturers that claimed their business practices had helped fuel cartel violence in a significant win for the firearm industry.

Justices unanimously blocked the case under legislation that mostly bars gunmakers from liability when crimes are committed using their products. Justice Elena Kegan wrote in the decision that Mexico had not plausibly argued the U.S. gunmakers had aided in illegal gun sales to cartels and drug traffickers.

"The question presented is whether Mexico's complaint plausibly pleads that conduct. We conclude it does not," she wrote.

Gun manufacturers appealed to the high court after a lower federal court allowed Mexico's lawsuit to move forward under an exceptio

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