As regards the test DNA, I tried to understand. Suigetsu evokes well and truly the fact that what he found a date of the birth of Karin. We would thus speak here about an umbilical cord. Do I have to remind that we do not know WHERE was born Sarada? For me, what he found is the umbilical cord of Sarada because she was born in this mark and obviously, the test being been makes with the saliva of Sarada, there is correspondence. Now, why this cordon is in the desk of Karin? I have no explanation, but there should be a reason.