Liquor must list alcohol content by volume and may also list proof, a measure of alcoholic strength.

NPR: Are Nutritional Labels Coming On Alcoholic Drinks

The ruling would allow the labels to declare alcohol content as a percentage of alcohol by volume, the approach favored by the beer industry.

NPR: Are Nutritional Labels Coming On Alcoholic Drinks

While the volume of geo-locked content online continues to rise, it is far outstripped by the volume of media in the dark corners of the internet.

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Wines containing 14 percent or more alcohol by volume must list alcohol content.

NPR: Are Nutritional Labels Coming On Alcoholic Drinks

Wines that are 7 percent to 14 percent alcohol by volume may list alcohol content or put "light" or "table" wine on the label.

NPR: Are Nutritional Labels Coming On Alcoholic Drinks

And, according to IDC Financial Insights, the volume of digital content is expected to increase this year from last by 48 percent.

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So while an algorithm might be able to sort out a collection of quality content like feature films, or music released by a label, or books distributed by a publisher, the shear volume of self-published books, or self-recorded music, makes the algorithmic approach less and less successful.

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