I want to print virus's. A virus is a machine that delivers a package of DNA/RNA (that carries the code to make more virus's) to the nucleus of a cell. If we make our own virus where the DNA/RNA codes for say "insulin"..we may be able to cure diabetes. I have already built a primative virus back in 1994 but that stretched the technology to it's limits. Now the techonolgies are in place to pursue this approach to medicine.