WASHINGTON (CNN) -- The Supreme Court on Tuesday took up gun control, hearing arguments concerning a District of Columbia ban on handguns more than two centuries after the Second Amendment gave Americans the right to "keep and bear arms." I don't understand why liberals want additional gun control laws. If the liberal judges would enforce the current laws, there would be no need for additional laws. The implementation of the Bartley-Fox law in Massachusetts in the 1970s which imposed a mandatory one-year term in prison for carrying a gun without a permit. Judges do not enforce this law. They allow criminals to walk with a slap on the wrist after breaking this law. The real problem is the judges and the criminals, not the people who bear arms legally.