ATLANTA — A battle over background checks for Uber drivers at the world’s busiest airport comes as cities like Los Angeles and Austin, Texas, consider more thorough screenings to prevent criminals from getting behind the wheel. 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. Atlanta’s city council on Wednesday is set to consider the airport’s plan for screening drivers for Uber, Lyft and other ride-booking firms when proposed new rules go before the council’s transportation committee. Uber has agreements with more than 50 U.S.