First, the FBI must present evidence to FISA judges that it has verified and that comes from intelligence sources deemed reliable. Second, it must disclose any information that calls into question the credibility of its sources. Finally, it must disclose any evidence suggesting the innocence of its investigative targets.
PapaD was not a Russian asset as you say. You should be sued for that comment. It is false and defamatory.
Link: https://thehill.com/opinion/white-house/434054-the-damning-proof-of-innocence-that-fbi-likely-withheld-in-russian-probe