Earlier this summer Facebook rolled out facial recognition software that identifies users even when they appear in untagged photos. Like every other time the social networking site has introduced a creepy, invasive new feature, they made it the default setting without telling anyone. 

Once people realized that Facebook was basically harvesting biometric data, the usual uproar over the site's relentless corrosion of privacy ensued. Germany even threatened to sue Facebook for violating German and EU data protection laws and a few other countries are investigating. But facial recognition technology is hardly confined to Facebook -- and unlike the social networking site, there's no "opt-out" of leaving your house. 

Post-9/11, many airports and a few cities rushed to install cameras hooked to facial recognition technology, a futuristic apparatus that promised to pick out terrorists and criminals from milling crowds by matching their faces to biometric data in large databases.

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http://www.alternet.org/story/152231/5_unexpected_places_you_can_be...