Well. . .a H-Bomb doesn't leave behind radioactivity.

ugly ahh baby has an equal chance

japan in 1940s

Yo! THAT BABY HAS PLOT ARMOR!

Minato: please take care of my son, 3rd hokage...
3rd hokage: yes of course I will. I will make him a mighty Shinobu.
*2 days later*
3rd hokage: ok I'm out. The stove is on! *leaves room*
8 month old naruto: eh?