The idea of a national “Privacy Bill of Rights” arrived two weeks after the Federal Trade Commission recommended the creation of a “Do Not Track” tool to let consumers stop or restrict advertisers from studying their online activity for ad targeting purposes — including the websites they visit, the links they check, their Internet searches, and their online purchases. But what might have some consumers confused is how advertisers are able to track them in the first place — and what in the world a “Privacy Bill of Rights” would even look like.

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