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A new study shows how ad-based technology is used for surveillance

NPR's Rob Schmitz speaks with Ronald Deibert of The Citizen Lab about a new report he published entitled "Uncovering Webloc," which is about how ad-based technology is used to surveil people.

Copyright 2026 NPR

Tinbete Ermyas
Rob Schmitz
Rob Schmitz is NPR's international correspondent based in Berlin, where he covers the human stories of a vast region reckoning with its past while it tries to guide the world toward a brighter future. From his base in the heart of Europe, Schmitz has explored Berlin’s techno scene, reported on the rise and fall of far-right rule in Poland, investigated Norway’s salmon farming industry, covered elections in the Netherlands, Hungary, Slovakia, Austria, Poland, the European Union and beyond, and patiently chronicled a 639-year organ performance in rural Germany.
Daniel Ofman

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