I'm a HUGE fan of 3D printing, but you are going way too far. Your story is far fetched. I do think this will be used in medicine, but at first for simple, small plastic devices that at first will be non-invasive for pt safety reasons. After all, right now all med devices have to go through an entire FDA 510K approval process, especially if they are invasive. I have worked in medicine for over 20 years. I appreciate the enthusiasm, but dial it down a bit...you can't just "inject DNA" and expect that it will work like a growing bactrial culture....rediculous even in a completely scientifically controlled environment.