With no indication yet whether the new virus is like SARS, which spread from person to person, officials are tracking this new virus closely.

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It means your car might keep a log of how you drove it or that your Xbox might be tracking every person in the room and watching their facial expressions to decide which ads to show them.

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Give that same sales person a smartphone for opportunity tracking, and updates will happen much more quickly.

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The software detects the slightest deviations of facial movement in the eyes, cheeks, and mouth, tracking whether a person smiles, grins, or breaks out in laughter.

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That was 20 years ago, a time when no one had cell phones, Blackberries or Web sites to aid in tracking a missing or abducted person.

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Indoor tracking systems which process data from one or more sources of location information to estimate where a person or object is located are not new.

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