-Nagato was not random ... he awakened his Rinnegan when his parents were killed.
-Those leaf ninja were probably under genjutsu, re-read that chapter, its weird that they dont realized that they are not enemy after 10 second or so.
-I said its hinata/hanabi or neji
-I'm not saying that Mikoto is Hinata's mother just that she looked like Mikoto suggesting she looked more like Uchiha than Hyuga.
-Nagato
WAS random; if Madara had given his eyes (as you say) to ANY Uzumaki,
they would've unlocked the Rinnegan when their parent's died.
-Did I disagree with the genjutsu part? Think before you post...
-Neji has a different mother than Hinata/Hanabi, so you have to prove to me that Neji's mother is Uchiha.
- Sasuke's mother probably married into the family (IMO), and so doesn't have the sharingan (if she didn't that would almost be incest...).