William Campbell
https://conservativeus.com/secret-fbi-informant-uranium-one-refuses-stay-silent-reveals-proof-wrongdoing-exists/
Also, as AG Sessions could have facilitated his testimony but did not.
https://www.americanthinker.com/articles/2017/10/why_is_jeff_sessions_hiding_uranium_one_informant.html
“AG Sessions could have facilitated his testimony but did not.”
Grrrrr...