how they screen drivers. >> if they really want to put themselves out there as the safe ride home, they should really make sure that they are putting these people out there that are going to get you home safely. >> reporter: uber's response to the problems and its background checks is the company has made significant investments in improvements and will continue to work with state and local governments to get it right in the future. to conduct its background checks, uber and lift both use a company called checker which uses a potential driver's name and social security number to search federal, state and local courts and other databases for disqualifying records. regulators tell cnn that is not enough. and that government-run background checks that include fingerprinting, potential drivers, would go further in discovering histories of violence. but uber says fingerprints don't offer a complete picture of arrests and convictions, and uber has gone to great lengths to fight any government-run back ground checks. >> that's their game plan in