Board Thread:Versus Debates/@comment-26005711-20151018173351/@comment-26107879-20151028154551

Also after reviewing the manga it shows that Mifune had two samurai guards at his side so thus Danzo could not have activated his Ms and used Koto on Mifune without them seeing it as well, not only that but it shows when Danzo arrives as he is greeted by a couple of Samurai while Mifune is already sat down at his table at the Kage summit, this disproves your theory.