Omnipresent facial recognition has become a golden goose for law enforcement agencies around the world. In the United States, few are as eager as the Department of Homeland Security. American airports are currently being used as laboratories for a new tool that would automatically scan your face — and confirm your identity with U.S. Customs and Border Protection — as you prepare to board a flight, despite the near-unanimous objections from privacy advocates and civil libertarians, who call such scans invasive and pointless.

According to a new report on the Biometric Entry-Exit Program by DHS itself, we can add another objection: Your flight could be late.

Although the new report, published by Homeland Security’s Office of the Inspector General, is overwhelmingly supportive in its evaluation of airport-based biometric surveillance — the practice of a computer detecting your face and pairing it with everything else in the system — the agency notes some hurdles from a recent test code-named “Sprint 8.” Among them, the report notes with palpable frustration, was that airlines insist on letting their passengers depart on time, rather than subjecting them to a Homeland Security surveillance prototype plagued by technical issues and slowdowns: