Supreme Court wary of Mexico's fight against US gunmakers

The US Supreme Court appears likely to block a lawsuit by Mexico against US gun manufacturers - who are accused of putting vast arsenals of weapons in the hands of drug cartels.

In the long-running lawsuit, Mexico's government argues that the "flood" of illegal guns across the border is a result of "deliberate" practices by US firms.

The gun industry's trade association has denied any wrongdoing and blamed Mexico's government for failing to control crime.

The flow of guns from the US to Mexico has recently emerged as a bargaining chip in talks over the implementation of tariffs on Mexican goods entering the US.

During oral arguments on Tuesday, liberal and conservative justices alike expressed scepticism about Mexico's claims that US guns contribute to criminal networks.

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