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After the briefing, Sen. Carl LevinCarl LevinA lesson on abuse of power by Obama and his Senate allies President Trump, listen to candidate Trump and keep Volcker Rule Republicans can learn from John McCain’s heroism MORE (D-Mich.), the chairman of the Senate Armed Services Committee, told reporters the Obama administration was in the process of preparing a public information release that would attempt to address many of the privacy concerns that have been raised about the domestic programs.

National security and intelligence officials have been conducting a series of public and private briefings over the last two weeks after lawmakers criticized the NSA's programs as lacking sufficient oversight.