Board Thread:Versus Debates/@comment-26127155-20150807124703/@comment-25405426-20150807163549

Well..Shisui did not 100% think it would work either.

Also, itachi programmed the crow (for lack of a better way to say it) to activate once it encountered the MS (hoping it would be Sasuke). So it was not intended to manipulate anyone other than the one target...Sasuke.

and besides if Danzo could defeat his Genjutsu with the Izanagi it can't be unstoppable. Furthermore it might be the same thing when it comes to someone with the ability to weild the Susanoo. Sasuke was able to shield team 7 from the Infinite Tsukuyomi. I would say that is stronger than the Koto.