Just an innocent mistake.
“Just an innocent mistake.” That is what was said about Mueller’s FBI when it was his time to leave. Viz.:
Mueller exits FBI after 12 turbulent years - USA Today
https://www.usatoday.com/story/news/politics/2013/08/01/mueller-fbi.../2606845/
Aug 1, 2013 - Less than two months before the Sept. 11 terrorist attacks, Robert Mueller was sitting before a Senate panel defending the FBI in the wake of a series of costly blunders. ...