Alarm went off....Scientists create DNA based Robots that eat and self duplicate

Here is why the alarm went off...
Below is a picture of the actual thing. This thing is able to feed itself, swim and duplicate...
What is to stop DARPA or China from adapting this thing to feed upon white blood cells while at the same time targeting a race of people say people of blue eyes or black skin?

Actual Picture....

Using DASH, the Cornell engineers created a biomaterial that can autonomously emerge from its nanoscale building blocks and arrange itself -- first into polymers and eventually mesoscale shapes. Starting from a 55-nucleotide base seed sequence, the DNA molecules were multiplied hundreds of thousands times, creating chains of repeating DNA a few millimeters in size. The reaction solution was then injected in a microfluidic device that provided a liquid flow of energy and the necessary building blocks for biosynthesis.

As the flow washed over the material, the DNA synthesized its own new strands, with the front end of the material growing and the tail end degrading in optimized balance. In this way, it made its own locomotion, creeping forward, against the flow, in a way similar to how slime molds move.

 "Even from a simple design, we were able to create sophisticated behaviors like racing. Artificial metabolism could open a new frontier in robotics."



www.sciencedaily.com/releases/2019/04/190411145103.htm