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Look at the panel left in the corner. As you can see Itachi is saying:
''Madara.. So you knew about me.''
I think that the 'real truth' will be much different people are hoping or thinking is.
I think tobi manipulated from a distance some of the uchiha clan(itachi/sasuke's dad). He planned it all out. He knew Itachi would let his brother live, and was planning right from the start to use the revenge from Sasuke to stimulate his own powers for the moment what is yet to come.
Any thoughts?
EH