Sen. John Kennedy John Neely KennedyMORE (R-La.) grilled a Facebook executive during a hearing on Tuesday about the company's data collection practices, asking for assurances that it isn't abusing its information about users.

"I think you do enormous good, but your power sometimes scares me," Kennedy told representatives from Facebook, Google and Twitter on Tuesday.

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Turning his attention to Colin Stretch, Facebook's general counsel, Kennedy asked whether the platform could hypothetically provide personal information about Sen. Lindsey Graham Lindsey Olin GrahamGraham: GOP will confirm Trump's Supreme Court nominee before the election Fox's Napolitano: Supreme Court confirmation hearings will be 'World War III of political battles' Grassley, Ernst pledge to 'evaluate' Trump's Supreme Court nominee MORE (R-S.C.), who was chairing the hearing, or about any individual user.

"Do you have a profile on me?” Kennedy asked.

Stretch responded that Facebook has safeguards in place to prevent that level of invasiveness.

"The answer is absolutely not," Stretch said.

"We have designed our system to prevent exactly that — to protect the privacy of our users," he added.