U.S. Attorney John Durham discovered that the primary sub-source for British ex-spy Christopher Steele’s discredited dossier was investigated by the FBI as a possible “threat to national security,” but the bureau never told the Foreign Intelligence Surveillance Court and used the dossier anyway. //

In the release, we see that as far back as 2005, the primary sub-source for the Steele dossier was suspected of being a Russian agent. This revelation heavily implies that the FBI knew this could be an attempt at Russian disinformation and that the information could not possibly be reliable. How do we know they knew that? They never brought that investigation up to the FISA court when obtaining warrants. If they had, there would have been a big pause from the court in granting those warrants.