A former senior Russian official lives under US government protection in the Washington area, current and former government officials tell NBC News.
NBC News Denied Man's Name and Other Important Details Upon Request by US Officials Reporting this information could jeopardize his life.
The former Russian government official, who had a job with access to secrets, lived openly under his true name.
A correspondent from NBC News went to the man's house in Washington and rang the bell. Five minutes later, two young men in an SUV ran down the street and parked next to the correspondent's car.
The men, who identified only as friends of the Russian, asked the correspondents what he was doing there. [1
The discovery of the Russian's presence in the US was made following a CNN report on Monday claiming that the CIA had filtered one of its top spies from there to Russia after officials worried it threatened to get caught.
The New York Times later reported on Monday that the CIA's Russian informant had significantly contributed to the Agency's conclusion that Russian President Vladimir Putin had arranged and staged the campaign to intervene in presidential elections in 2016.
The Times said the source was "the best government's insight into Puti's thinking and orders" and was instrumental in the CIA's assessment that Putin endorsed Donald Trump's candidacy and personally hijacking the Democratic National Committee Orders refer to the person in the top-secret Presidential Daily Brief during the last months of the Obama administration.
Brennan sent reports from the source in a separate white envelope to the president and a small group of senior national security officers to ensure safety, the Times reported.
NBC News has not confirmed that the Russian-based Russian has been feeding CIA information on Russia's election defaults. But for reasons withheld by NBC News, it fits the profile of someone who may have had access to information about Putin's activities and who was recruited by American intelligence officials.
Two former FBI officials told NBC News that they believe it is the source referred to in the CNN and New York Times reports.
The Russian is likely to be moved from his current residence to protect him, current and former officials said.