U.S. Customs and Border Protection supervisor Erik Gordon, center, helps a passenger navigate one of the new facial recognition kiosks at a United Airlines gate before boarding a flight to Tokyo, Wednesday, July 12, 2017, at George Bush Intercontinental Airport, in Houston. The Trump administration intends to require that American citizens boarding international flights submit to face scans, something Congress has not explicitly approved and privacy advocates consider an ill-advised step toward a surveillance state. (AP Photo/David J. Phillip)
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