A diagram has been uncovered which shows that Iranian scientists are calculating the "nuclear explosive yield" of a major nuclear weapon. The weapon would yield 50 kilotons at full force.
Diagrams of Iran's work were passed to the International Atomic Energy Agency last year and are now being confirmed and reported by an anonymous source with inter-agency knowledge.
For an idea of what a 50 kiloton weapon would do, think back to World War II Japan. On August 6, 1945, the U.S. dropped a 15 kiloton weapon named Little Boy on Hiroshima. It killed approximately 66,000 people instantly, yet Japan would not surrender. Therefore, three days later, the U.S. dropped a second 15-to-20 kiloton weapon named Fat Man on Nagasaki. It killed approximately 39,000 instantly and ushered in the war's end.
Now think of this: right now, Iranian scientists appear to be investigating the possibilities of constructing a nuclear weapon that is more powerful than both of these bombs combined.