See specially item 3 of the governments position. That is in clear contrast to current government position that claims that semi-automatic weapons only belong in the hands of the military or police, not citizens."The U.S Government appealed the decision and on March 30, 1939, the U.S. Supreme Court heard the case. Attorneys for the United States argued four points:
1- The NFA is intended as a revenue-collecting measure and therefore within the authority of the Department of the Treasury.
2- The defendants transported the shotgun from Oklahoma to Arkansas, and therefore used it in interstate commerce.
3- The Second Amendment protects only the ownership of military-type weapons appropriate for use in an organized militia.
4- The "double barrel 12-gauge Stevens shotgun having a barrel less than 18 inches in length, bearing identification number 76230" was never used in any militia organization.
Neither the defendants nor their legal counsel appeared at the Supreme Court. A lack of financial support and procedural irregularities prevented counsel from traveling.[3]Miller was found shot to death in April, before the decision was rendered.[4]"
Read more here http://en.wikipedia.org/wiki/United_States_v._Miller" onclick="window.open(this.href);return false;
The US vs Miller decision was also quoted during the Heller case.