There is no doubt that she knows more than it seems, maybe she was there at Sarada's birth. If this is not the case, then Sakura told her about it.
Also, I bet there is a connection between the Akatsuki guy and Sarada's birth.
There is no doubt that she knows more than he seems, maybe she was there at the birth of Sarada. If this is not the case, then Sakura told her about it.
I think Kakashi is a total hypocrite for telling Sasuke to not pursue revenge, but then in part II, he goes and helps avenge his friend Asuma.
What do you think?