The White House has released a report containing 46 recommendations to reform the US intelligence community's online surveillance in light of the Edward Snowden leaks.
Among the changes suggested by the Review Group on Intelligence and Communications Technologies is an end to the mass storage of "meta-data" on phone calls and emails by the US government.
The report says that such information should be stored privately "for the government to query when necessary for national security purposes".
The review board also calls for privacy standards to be applied to information collected about non-Americans, and more safeguards to prevent future leaks.
President Obama is expected to enact some of the recommendations in January.