Released: April 20, 2013

Advances in image analysis worry privacy advocates

Source: Craig Timberg - The Washington Post

Advances in computing power and analytical software have allowed for individuals to be identified and tracked as never before — especially when that information is combined with the location data emitted by most cellphones.

The role of these technologies in the Boston investigation is unclear, but law enforcement experts say that video surveillance and analysis is especially valuable in cases such as this, with an unexpected attack and no obvious suspects at first.

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