Iranian U-235 Bomb? What are the Possible Pitfalls for Such a Bomb?

Question

BTW, is There Any Hard Evidence that the Iranians Are Enriching U-235 to Weapons Grade?

Additionally, Can One Speculate as to Why the North Korean Plutonium Bomb Fissled?

Answer 1

Read up: http://en.wikipedia.org/wiki/Enriched_uranium

Even a 20% enriched uranium is sufficient to create a bomb. That would be well within the capability of a nominal Iranian process.