The rule from the Bureau of Alcohol, Tobacco, Firearms and Explosives seeks to ensure ghost guns are subject to the same requirements as commercial firearms sales.

The Supreme Court said Friday it will decide whether to block a $10 billion lawsuit Mexico filed against leading U.S. gun manufacturers over allegations their commercial practices have helped caused much bloodshed there.

The Supreme Court on Friday added more than a dozen cases for its term starting Monday, including a lawsuit by the Mexican government seeking to hold U.S. gunmakers liable for violence there, a death penalty appeal and a lawsuit by a woman who says she was discriminated against for being heterosexual.