these machines that otherwise were used to create innocuous objects to create something that has deadly import and the problem is this technology might become so defuse one day that anyone might be suspect or any latent criminality could be expressed by anyone who wants to print a gun. i understand. >> but you're doing this with what is called a 3d printer. explain for our viewers is this something that really anyone would be able to do? >> well, the assumption is one day the technology will become more widespread and materials will be developed and in a better place than they are now. yes. if you were to have one in your home and you had the gun file you could just click print and have the gun. >> are you not concerned at all that sharing this technology with everyone, with children, with the mentally unbalanced, exactly -- are you not concerned this is exactly what this country does not need right now? will you feel responsible at all if someone uses this to kill an