How do we know Oro is experimenting for terror and domination.......... for all we know that test tube could've been from all those years ago. What are talking about, Oro still did experimenting after Sarutobi caught him. Matter of fact he did way worse experiments afterwards, so no Sarutobi couln't stop anything and never did. Also if it weren't for Oro, Kaguya would've won and everyone would be in an infinite Tsukiuyoma and this would be someone's dream.......... Naruto and Sasuke would've got their asses kicked separately if it weren't for Oro. Yes i said, IF IT WEREN'T FOR ORO THIS WOULD NEVER BE HAPPENING lmao. Plus he had a big change of heart against the 10 tails, so how do u know he's not studying things to actually benefit Konoha or the ninja world. U said it yourself why isn't Naruto forbidding him and stopping him and that Kakashi said it would be over for him regardless of his contribuition........ well it's obvious he's not crossing the line, so like i said ur jumping to conclusions.