Well, that's a very 2021 headline.

> The news starkly demonstrates not only the inherent power of location data, but how the chance to wield that power has trickled down from corporations and intelligence agencies to essentially any sort of disgruntled, unscrupulous, or dangerous individual.

I guess the problem with David Brin's sousveillance concept is that the average person is more likely to use these technologies to prey upon their fellows instead of pushing back against greater powers.

Doubtless that this is far from the first instance of "app data weaponization", just the first publicly disclosed one.