Lawmakers and civil liberties advocates might be pressing law enforcement agencies to scale back their use of facial recognition software, but international travelers should only expect to see more of the tech in the years ahead.

It's been almost two years since Customs and Border Protection began deploying facial recognition systems at U.S. airports, and despite the recent backlash against the software, the agency's efforts show no signs of slowing down. But if you ask Deputy Executive Assistant Commissioner John Wagner, the agency's use of facial recognition falls far short of the dystopian panopticon feared by many of the tech's critics.