[nickff]

But "[m]ass personal data collection" is a huge superset of "cookie tracking data"; the former encompasses all credit card information database breaches (such as Sony's), along with all government and healthcare database 'leaks'.

[mumblemumble]

We could limit it to "for marketing purposes" (which is what I meant, though I failed to specify it) and still find plenty of clear-cut examples of harm. This isn't breaking news. I took a class in graduate school that was largely devoted to studying examples of them and discussing their ethical and policy implications, and that was years and years ago.