Quote from Bagdemagus
Boy, is there a bigger pawn to konoha than itachi? before, i was expecting a revealing twist making tobi responsible for the uchiha massacre but, itachi was ready and willing to trap his little brother in a life long genjutsu! "protect konoha"... wow.
Oh... so the genjutsu would have been permanent? I was confused about that part. Is that what the rest of you got out of the whole "protect Konoha" genjutsu?
If that's the case, then like you, I find that shocking. It would have been kinder to simply kill Sasuke than permanently subvert his free will through a genjutsu.