Ethical dilemmas and Data Science

Well, I'm very green to data science, I'm just having my first class about it, and as an assignment, my professor told me to look up for ethical dilemmas where data science is involved, I'd like to know if you guys know any...

I know data science basically can know statistics, create models, find trends, but if you asked me, I couldn't think of any real ethical dilemmas, I think data science just spills out the real facts.

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