perhaps kabuto is a spy for jiraiya, in page 08 of chapter 237, he says that orochimaru changed bodies, HOW DOES HE KNOW THAT, only kabuto and orochimaru know about this, or he snuck in and watched himself, qienh wouyld be weird cause if he can do this he could have assasinated him, dunno but could someone share a different point of view to see how does he know.