Cambridge, Mass., became the fourth city in the state to ban facial recognition last week, joining Brookline, Somerville and Northampton. Callie Crossley, host of WGBH News’ Under The Radar joined Boston Public Radio on Friday to speak about why more cities need to beware the use of facial recognition due to racial bias.

"I'm very frightened out of my mind as I watch [facial recognition technology] be spread everywhere and accepted just as routine, when I know it doesn't work on dark skinned people like me and women," she said.

Studieshave proven that facial recognition technology incorrectly identifies Asian and African-American faces 10 to 100 times more than Caucasians, Crossley noted.

"They train the AI with regard to the facial recognition on white men's images," she said. "So that's what [AI is] going to recognize, because that's what the artificial intelligence was trained to do."