In New Mexico, police and prosecutors backed an effort to outlaw devices that convert pistols into machine guns. In Alabama, the governor made it a priority. Lawmakers in both states — one led ...

In New Mexico, police and prosecutors backed an effort to outlaw devices that convert pistols into machine guns. In Alabama, the governor made it a priority. Lawmakers in both states - one led by ...

States are mimicking federal law, which for decades has generally prohibited machine guns and any parts that can transform semiautomatic weapons into automatic ones. What does federal law say?