Controversy illuminates rise of facial recognition in private sector

For nearly a century, people have flocked every holiday season to Radio City Music Hall to watch the famous Rockettes perform in the Radio City Christmas Spectacular show. The latest show, however, is stirring up controversy among customers and privacy advocates. That controversy is over technology -- specifically, facial recognition software.

When Kelly Conlon, a lawyer, tried to join her daughter's Girl Scout troop at a Rockettes performance the weekend after Thanksgiving, the venue scanned her face and barred her entry.

Conlon reportedly appeared on an "attorney exclusion list" created by Radio City Music Hall's parent company, MSG Entertainment, which bans employees at law firms engaged in litigation with the company, even if a given individual isn't involved directly. In this case, Conlon wasn't involved directly, but her firm was engaged in litigation against one of the company’s restaurants, the New York Times reported.

Roughly a month later, news of the incident went viral, inciting concern over the use of facial recognition by private corporations and rekindling a public debate over whether to limit the technology.

The incident at Radio City Music Hall was first reported by a New York affiliate of NBC.

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Facial recognition software use by U.S. businesses has grown sharply in recent years, analysts and privacy advocates told ABC News.

The uses range from tech companies securing personal devices to retailers scanning for potential shoplifters to e-commerce giants tracking delivery drivers.

Companies contend that the technology helps them achieve a safe and efficient operation, benefiting consumers and employees alike; while critics say the powerful tool encroaches on the privacy of everyday people, risking undue punishment or discrimination, the experts said.

Meg Foster, a Justice Fellow at Georgetown University's Center on Privacy and Technology, described the incident at Radio City Music Hall as "the tip of the iceberg."

"Over the last few years there has been a quiet surge in the use of facial recognition by private companies," Foster told ABC News. "We've seen a huge rise in this technology."

Consumers are perhaps best acquainted with facial recognition software as means for unlocking their smartphones. Google added the face unlock feature to its Android operating system more than a decade ago, and Apple followed suit with its Face ID for iPhones starting in 2017.

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