Hong Kong researchers have successfully developed a 3D-printed nanoscale robot that can maneuver at a cellular level. In Jun, Science Robotics, a leading robotics technical journal, published a report about the exploits of the City University engineers. It shows that targeted, personalized medicine with tiny robots is no longer science fiction . Precision medicine, as a field, has grown tremendously with the arrival of gene-editing strategies and more-affordable DNA sequencing. WASHINGTON, DC - FEBRUARY 25: U.S. Secretary of Veterans Affairs Robert A. McDonald speaks during the White House Precision Medicine Initiative Summit, in the South Court Auditorium in the Eisenhower Executive Office Building, February 25, 2016 in Washington, DC.