Announcing his presidential candidacy Wednesday, Gov. Bobby Jindal posted a video, that appears to be shot from a tree, of him and his wife telling their children he's decided to run.
By clicking "Like" and commenting on Facebook posts, users signal the social network's algorithm that they care about something. That in turn helps influence what they see later. Algorithms like that happen all over the web — and the programs can reflect human biases.
A quick staff-up and a fast-paced money grab are common to both startups and campaigns. Here, staffers work at computers during a tour of President Obama's re-election headquarters in Chicago on May 12, 2010.
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License plate scanners have helped police locate stolen vehicles and have even assisted in murder investigations. But with their ability to track a person's every move, skeptics worry about privacy.
Pablo Martinez Monsivais/AP
Genevieve Bell, an anthropologist and vice president at Intel Corp., with teammate David Weinberger, senior researcher at the Berkman Center for Internet & Society at Harvard University.
Samuel LaHoz/Intelligence Squared U.S.
Officers stand watch at the intersection of West North Avenue and Pennsylvania Avenue as protesters walk for Freddie Gray in Baltimore in April. Gray died from spinal injuries about a week after he was arrested and transported in a police van.
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High-definition video cameras with 30x magnification keep watch over the Boston Marathon finish line, where two bombs detonated in 2013, killing three people and injuring hundreds.