The government has effectively put machine guns out of the reach of the average citizen. An end-a-round the Second Amendment. The technological advances in firearms though notable are more in line with convenience and efficiency. There is a day coming when technology will leap far and away from gun powder and the rifled steel barrel. In construction and design many codes allow processes and techniques that would meet the required end result but may not be commonly used. Given that peoples lives and health are at stake in the structures a society deems acceptable as to safety...can Congress constitutionally mandate that only arms of a bygone era be used for self defense? Will the Second Amendment allow/support the bearing of portable lasers for self-defense?