As an INDUSTRY, we have some very important decisions to make, one of which is, "will we work on this type of system knowing full well what it will be used for?"
Yes, everyone has their price, but the fact remains that the tools are nigh useless without the expertise of the knowledgeable people to integrate and fine tune the final product. If there is enough ethical backlash by we tech people, the progress any government makes can be set back decades.
It can't be stopped at this point most likely, as the data and initial research is out of the bag as it were, but it does"t have to be carried one inch further.
Personally, I won"t touch it. No benefit is worth the risk of this type of system being leveraged against a population. I've fully thought through the security, search and rescue, administrative, etc... applications, and as cold as it may sound, it is not worth it. The invasion of privacy, the chilling effects put on public discourse, the enabling of active population social engineering through ubiquitous surveillance and negation of dissidents is not a legacy worth having anything to do with.