From three years ago, and still very important

But in an unsigned opinion, the U.S. Supreme Court Monday vacated that ruling. It said the Massachusetts court improperly found that Second Amendment protection applies only to weapons that were in common use at the time of the nation's founding.

Referring to its landmark 2008 ruling on handguns in the home, the justices said the Second Amendment applies “to all instruments that constitute bearable arms,” even those not in existence at the time of the founding

SERIOUSLY important.