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Executives from Apple and Google told lawmakers Tuesday that users have control over information used to pinpoint the location of iPhones and smartphones running Google's Android software.
Apple is telling Congress that its iPhone location tracking is meant to improve service, not stalk customers.
High-tech giants Google and Apple struggled to reassure lawmakers at a Capitol Hill hearing Tuesday that the companies can protect the privacy of mobile-device users, in light of recent reports that popular smartphones and tablet computers are secretly storing data on the whereabouts of customers.
Alan Davidson, Google director of public policy, told the panel that location applications can have "enormous benefits" for consumers.
"We've only scratched the surface of what is possible," he said.