Madara is the only one who knows the truth. So he will be telling it for a while. Unless we don't know his intension's, we can't say if he's lying or not.
What's there to lie about? If he didn't want to tell the truth then he didn't have to ever bring it up!!
Nobody else can tell it. Nobody else knows, that's in the reach of Sasuke. He won't go back to Konoha for a while, and I believe that even if Sasuke returns, I doubt that Hag and Bag would sit down, put a coup of tea, and tell Sasuke his little bed time Oh-how-your-brother-killed-your-clan story.
This all was hidden for every other Shinobi for a reason. So it will remain a secret unless Madara tells it. And he will!.......................
can some one tell me where can i get a pic by my user name please
yes get my message.......sorry bosss