Supreme Court upholds California's pig welfare law.

The US Supreme Court has rejected a challenge to a California animal cruelty law that requires more space for breeding pigs, which pork producers argued could lead to industry-wide price increases. The law, Proposition 12, requires that all pork sold in California come from pigs whose mothers were raised with a minimum of 24 square feet of space, banning the use of metal “gestation crates” typically used in the pork industry. The court ruled that companies must comply with the laws of the states in which they choose to sell, and that the plaintiffs did not suggest that California’s law offends the Commerce Clause of the Constitution.