Assault and Batteries

Now, goodness knows I'm not one to stand in the way of scientific and technologcial progress, but I feel obliged to ask: Is this really a good idea?:

Viruses "trained" to build tiny batteries
Researchers trying to make tiny machines have turned to the power of nature, engineering a virus to attract metals and then using it to build minute wires for microscopic batteries.

The resulting nanowires can be used in minuscule lithium ion battery electrodes, which in turn would be used to power very small machines.

Great. I can see a terrible symbiosis coming. Not only is there an impending robot insurrection on the horizon, but now we have to worry about trained viruses getting unleashed and enslaving humanity. For whom do you think the viruses will be making those batteries? Yep, our robotic overlords. Doh!