The Federal Bureau of Investigation and its affiliated prosecutors admitted a rather dumb error in its prosecutorial case against accused Russian agent of influence Maria Butina:
According to CBS News:
Federal prosecutors said Friday in a court filing that alleged Russian agent Maria Butina should not be released from jail on bond -- and also that the government was "mistaken" in its understanding of text messages that led to its claim that she offered sex for "a position with a special interest organization."
A bond hearing is scheduled for Monday...
...So she wasn't quite the 'red sparrow' of the dramatic spy novel, apparently. And in fact, her case is very complex....
https://www.americanthinker.com/blog/2018/09/the_fbi_gets_egg_all_over_its_face_in_maria_butina_red_sparrow_claim.html