https://www.thedailybeast.com/mueller-tells-congress-fbi-currently-looking-into-issues-of-trump-blackmail?ref=home&fbclid=IwAR3cRArR78iqz1NnvpKd-9EmJsZR7OMUf1rR0AB6thDkM_1qSTLXCXnG8zQ
"The Illinois lawmaker then noted that Mueller had charged former National Security Adviser Michael Flynn with making false statements about his conversations with Russian officials. “Since it was outside the purview of your investigation, your report did not address how Flynn’s false statements could pose a national security risk, because the Russians knew the falsity of those statements, right?” Krishnamoorthi wondered. “I cannot get into that, mainly because there are many elements that the FBI are looking into different aspects of that issue,” Mueller said in response. “Currently?” Krishnamoorthi quizzically replied. “Currently,” the one-time FBI chief confirmed."