Originally Posted by Numinous
@ apocalypz: You didn't realize that with what you said about Karin proves my point that sensors can distinguish between different chakras within the same person? If Minato was a sensor as Karin, I think he'd recognize his pupil's chakra even if it was mixed with others but hey, I'm just assuming the character's aren't morons instead of giving properties that would make them morons considering the manga.
Karin was unable to distinguish Hashi's chakra. She was unable to distinguish beforehand the sharingans (number of chakra signatures) in Danzo's arm. A great deal of people in the manga has now said "What is this chakra?" "This sensation..??" Plenty people have made comments about Naruto's, Sasukes or Bijuu level chakra being dark, sinister, what not...Karin making the comment really doesn't boast her sensor skills.
AO was only able to confirm his suspicions by using the byakugan as I showed with the previous panel.
I mean I get what you're saying but again you're just putting Minato on a level of a moron because of the situation he couldn't foresee.
*Obito warping himself under Madara's lair
*Being saved by Zetsu/Madara
*Being taught everything about the Uchihas and the Sage,
*Brainwashed damn near into becoming Uchiha Madara
*Developing his MS in such a short time
*Being able to use the Kyuubi for such an extensive time
Even for a genius that is kinda hard to come up with...