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Want to know what data your apps collect? Download it

The apps on your smartphone know a lot about you. Though some apps, websites, and services have long allowed you to download the data they collect from you, many companies just began offering a feature that lets users do this — even if they don’t live in the European Union. Yahoo Finance's Ethan Wolff-Mann joins Dan Roberts, Julia LaRoche, and Kristin Myers to explain what he learned from the data he downloaded from Instagram, Spotify, and Uber.