Among the changes Obama is expected to announce is more oversight of the National Intelligence Priorities Framework, a classified document that ranks U.S. intelligence- gathering priorities and is used to make decisions on scrutiny of foreign leaders. A presidential review board recommended increasing the number of policy officials who help establish those priorities, and that could result in limits on surveillance of allies.
Documents released by former NSA contractor Edward Snowden revealed that the U.S. was monitoring the communications of several friendly foreign leaders, including German Chancellor Angela Merkel. The revelations outraged Merkel as well as other leaders, and U.S. officials say the disclosures have damaged Obama's relations around the world.
Obama and Merkel spoke by phone Wednesday, but U.S. officials would not say whether they discussed the NSA issues.
The president also is said to be considering one of the review board's most aggressive recommendations, a proposal to strip the NSA of its ability to store telephone records from millions of Americans and instead have phone companies or a third party hold the records. The NSA would be able to access the records only by obtaining separate court approval for each search, though exceptions could be made for emergency national security matters.
It's unclear whether Obama will ultimately back the proposal or how quickly it could be carried out if he does.
Before making his final decisions, the president was supposed to receive a separate report from a semi-independent commission known as the Privacy and Civil Liberties Oversight Board, which was created by Congress. However, that panel's report has been delayed without explanation until at least late January, meaning it won't reach the president until after he makes his decisions public.
Members of that oversight board did meet with Obama on Wednesday and have briefed other administration officials on some of their preliminary findings. In a statement, the five-member panel said its meeting with the president focused on the NSA phone collection program and the Foreign Intelligence Surveillance Court, which oversees the data sweeps.
It's unclear why Obama will announce his recommendations before receiving the report from the privacy and civil liberties board. One official familiar with the review process said that some White House officials were puzzled by the board's delay. But the official said the report probably would still have strong weight in Congress, where legislators are grappling with several bills aimed at dismantling or preserving the NSA's authority.
That official and those familiar with the White House review insisted on anonymity because they were not authorized to discuss the process by name.
Obama also met at the White House Wednesday with members of the U.S. intelligence community, which largely supports keeping the NSA surveillance programs intact. On Thursday, the president will meet with members of Congress, while his top lawyer, Kathryn Ruemmler, will meet with representatives from privacy groups.
Shortly after receiving the review board recommendations last month, Obama signaled that he could be open to significant surveillance changes, including to the bulk collecting of phone records.
"There are ways we can do it, potentially, that gives people greater assurance that there are checks and balances — that there's sufficient oversight and sufficient transparency," Obama said during a Dec. 20 news conference. He added that programs like the bulk collection "could be redesigned in ways that give you the same information when you need it without creating these potentials for abuse."
The president also has backed the idea of adding a public advocate position to the Foreign Intelligence Surveillance Court which rules on many of the domestic surveillance decisions. The court typically hears only from the government as it decides cases and the advocate would be added to represent privacy and civil liberties concerns.
That review followed disclosures from Snowden, the former government contractor, who leaked details of several secret government programs. Snowden faces espionage charges in the U.S., but has been granted temporary asylum in Russia.
While Obama has said he welcomes the review, it's unlikely it would have occurred without Snowden's disclosures.
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