Cambridge Analytica directed to hand over data on U.S. citizen

The United Kingdom's data privacy watchdog is demanding that Cambridge Analytica turn over all the information it collected on American citizen David Carroll, who used British law to request his personal information from the now-defunct data firm, Reuters reports.

Why it matters: Carroll's legal success "sets a precedent that would enable millions of other U.S. voters to request information that the company had collected on them," according to Reuters.