Oh right! There's also being worked on "biological robots"! They're essentially "Nano Bots" which can multiply themselves, and are able to do some extra things compared to "regular" Nano bots, if I remember it correctly, that is- at least the part of independent multiplication is true! 

Awesome stuff.

Fabs

Like nanodevices with self-replicating capabilities originally designed for drug delivery, but eventually get out of control and kill us all? Btw., why necessarily governmental facilities? I can well imagine a “dude in his garage” … :)