As the furor over gun control fades from the front pages - and therefore from politicians need to actively participate en masse - it appears there is a rather large loophole that could change things considerably. As this clip shows, Cody R Wilson, a 25 year old University of Texas Law student, has figured out how to print a semi-automatic rifle from the comfort of his own home. Wilson is an advocate for the open source production of firearms using 3D printing technology and it is forcing the US legal system to catch up and control this new technology. From the constitution to the legal system and from the manufacture and test-firing of 3D-printed gun, this clip is intriguing to say the least.