Enlarge / A young passenger uses JetBlue’s facial-recognition system at Logan Airport in Boston on June 15, 2017. (credit: Craig F. Walker/The Boston Globe via Getty Images)

Georgetown University researchers have released yet another report warning of the potential dangers and ineffectiveness of the beginnings of routine facial recognition scanning by certain airlines at a handful of airports nationwide.

The new report, which was released Thursday, comes on the heels of a related 2016 report showing that half of Americans’ faces are already in a facial recognition database.

“As currently envisioned, the program represents a serious escalation of biometric scanning of Americans, and there are no codified rules that constrain it,” the report concludes.