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If you're taking fire, whoever is firing has agreed in advance that it's OK for your unit to return fire.
That's not quite the same thing at the individual level, especially looking worldwide.
However, anyone interested in legislating all that away should, in my opinion, check their privilege, apply their law to themselves, and doff their security details.
I'm guessing that would sober up a few of these [gerund] [noun]s.
How about medical applications? 1mm^3 is actually small enough to be put in a pill and go through your digestive system. Cover it in some glass coating to avoid acid from melting it, swallow a bunch over a number of time intervals, have sensors on the surface that measure whatever can be measured and you may have some interesting results. It is still too big to be injected into your blood stream, need to shrink it another 10-100 times to do that I guess, but it is an interesting way to develop computing by combining it further with the medical field. You can actually embed 1mm^3 computers into your bones and other tissue and not even feel them probably, while they are sending their data to your phone and to your physician.