How Digital Advertising Alliance's AdChoices tool, which launched in 2010 to let users opt out of personalized ads, is undermined by its cookie-based approach (Aaron Sankin/The Markup)

Aaron Sankin / The Markup:
How Digital Advertising Alliance's AdChoices tool, which launched in 2010 to let users opt out of personalized ads, is undermined by its cookie-based approach  —  Let's just say it leaves a lot to be desired  —  Last year, while reporting a story about how the digital advertising industry burrowed …

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