Uber has objected to the Atlanta airport's plan to use fingerprints to check criminal records of its drivers, saying its own record checks are sufficient.
But the district attorney in Uber's hometown of San Francisco has called the ride-booking firm's process "completely worthless" since drivers aren't fingerprinted.
In Houston, city officials say they found that background checks without fingerprints allow criminals who have been charged with murder, sexual assault and other crimes to evade detection in a variety of ways.
Uber has agreements with more than 50 US airports, none of which require the fingerprint-based background checks being proposed by Atlanta' s airport, the company said in a statement. Those airports include major air hubs in Denver; Los Angeles; Memphis, Tennessee; Charlotte, North Carolina; and Salt Lake City, Utah.
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But New York City does fingerprint drivers, and the mayor of Los Angeles this month asked state regulators to allow his city to do so as well.
Houston's program began in November 2014, and city officials there say they're far more thorough than any other way of checking someone's criminal past.
"Public safety is our No 1 priority that's something the city of Houston does not compromise on," said Lara Cottingham, Houston's deputy assistant director of administration and regulatory affairs. "That's the reason we license any vehicle for hire."
Since Houston's ordinance went into effect, the city's fingerprint-based FBI background checks have found driver applicants who have been charged with murder, sexual assault, robbery and indecent exposure, among other crimes.
Potential drivers can pass background checks that don't rely on fingerprints simply by using an alias, the report found. For instance, one driver cleared by a company that does background checks for Uber underwent Houston's fingerprint check, which turned up 24 alias names, 10 listed social security numbers and an active arrest warrant, the report states.