Book Excerpt: Always On: How Smartphones Change Policing

Adapted from Always On: How the iPhone Unlocked the Anything-Anytime-Anywhere Future — and Locked Us In, � Brian X. Chen, to be published by Da Capo Press, A Member of the Perseus Books Group, on June 7.

For more discussion of the book, visit the Always On book page on Facebook.
One Saturday afternoon in January [...]

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