Well, well, well. Seems Mr. Mueller might have some 'splaining to do.
Apparently, his FBI had ties to one Oleg Deripaska in 2009 in connection with the missing retired FBI agent Robert Levinson case.
Apparently Oleg Deripaska had at one point applied for a visitor visa, which was turned down by the State Department, so the FBI did an end around and granted him a visa anyway under a special program that allowed him 2 entries into the United States.
According to The Hill and the New York Times, Oleg Deripaska used his business ties to Iran to help find Levinson after a request to do so by the FBI in 2009 (while Mueller was still head of the FBI). Gee…I wonder why Mueller is so adamant about this whole Russia Collusion thing…
http://thehill.com/opinion/white-house/387625-mueller-may-have-a-conflict-and-it-leads-directly-to-a-russian-oligarch
https://www.nytimes.com/2013/12/14/world/middleeast/a-disappearing-american-spy-and-the-cia.html
https://archive.nytimes.com/www.nytimes.com/interactive/2013/12/14/world/middleeast/Levinson_contract.html
http://www.worldtribune.com/report-on-muellers-own-russian-conflict-spotlights-fate-of-forgotten-american-hostage-in-iran/
https://archive.nytimes.com/www.nytimes.com/interactive/2013/12/14/world/middleeast/levinson_correspondence.html