[Petronski]

I read Richard Rhodes' The Making of The Atom Bomb and he said nothing like this.

Rhodes was right. This crude device was a dirty bomb, and would not initiate a fission reaction. Calling it a 'nuclear device' is ignorant or deceitful.

[Ender Wiggin]

See #9, an excellent point- if it was a "dirty bomb" or fizzled attempt at fission, the debris would be detectable today.