CBS News Source: Benghazi Documents Reveal White House 'Specifically Warned of Imminent Attack

CBS News investigative journalist Sharyl Attkisson on Tuesday night reported that the Obama administration has turned over documents relating to the Benghazi terrorist attack to the Senate Intelligence Committee. She made a number of revelations that don't bode well for the White House via her official Twitter account.

"One source who viewed the docs says someone in federal agency 'press shop' was involved in changing the talking points to remove al Qaeda," Attkisson wrote.

She also reported that an "official familiar with the docs" said there were advanced warnings in the days leading up to the attack, including ones that "specifically warned of an imminent attack on the U.S. compound in Benghazi."

The CBS reporter also referenced another source familiar with the Benghazi documents that said nearly all communication between Libya and Washington, D.C., since the attack began referenced al-Qaeda as being the likely "instigators." That portion is significant because there are still unanswered questions as to why the Obama administration initially blamed the attack on an anti-Muslim YouTube video.

"A source who viewed the docs says the few that mentioned a protest" on night of Benghazi "were not first hand references," Attkisson reports.

Additionally, she cited two sources that believe information on Benghazi survivors and transcripts of their interviews still have not been provided in unredacted form to the Senate Intel Committee.

Here are the screengrabs of Attkisson's tweets:

(Twitter)

(Twitter)

Editor's note: This story has been updated after an additional search revealed a CBSNews.com report on Attkisson's findings under the headline: "Source: Press officers partly responsible for Benghazi talking points changes."