FBI loses top intelligence asset as President demands investigation into FBI actions

“The stakes are so high that the FBI has been working over the past two weeks to mitigate the potential damage if the source’s identity were revealed, according to several people familiar with the matter. The bureau took steps to protect other live investigations that he has worked on and sought to lessen any danger to associates if his identity became known, said these people, who spoke on the condition of anonymity to discuss sensitive intelligence operations.”

https://www.washingtonpost.com/politics/secret-fbi-source-for-russia-investigation-met-with-three-trump-advisers-during-campaign/2018/05/18/9778d9f0-5aea-11e8-b656-a5f8c2a9295d_story.html