Due to the 238Pu high decay heat, establishing a technical limit for 238Pu content in which rendering the plutonium useless for weapons purposes may be possible.
indicated that enrichment activity could be used for nuclear weapons purposes, and the international community is united that Iran cannot have a nuclear weapon".
The nuclear watchdog noted that Iran had resumed converting some of its enriched uranium into metal fuel plates, rendering the material all but useless for weapons purposes.
Iran, continuing to insist that its nuclear development was solely for civilian energy purposes, persisted in stonewalling international watchdogs, even while Russia supplied Iran with uranium for enrichment and processing that could be diverted to weapons purposes.
These steps include ratification of the Comprehensive Test Ban Treaty (CTBT), conclusion of a verifiable Fissile Materials Cut-Off Treaty (FMCT) that would ban production of fissile materials for weapons purposes and reducing the role of nuclear weapons, among many others.
Meanwhile North Korea, it was discovered, had secretly been helping Syria to build a nuclear reactor ideally suited for weapons purposes, until it was bombed by Israel two years ago.North Korea never tried hard to disguise its plans, and now doesn't bother: it claims to have tested two bombs in the past three years and to be building more.
Then, France would have fabricated the enriched uranium into fuel rods for Iran's reactor, which could not have been used for weapons purposes.
There are, in addition, three other major problems with using this emergency legislation for non-urgent and unnecessary nuclear weapons purposes.
With an implosion weapon, plutonium is compressed to a high density with explosive lenses a technically more daunting task than the simple gun-type design, but necessary to use plutonium for weapons purposes.
All the civil nuclear energy systems could contribute to the proliferation risk that weapons-usable material might be diverted or misused for the weapons purpose by terrorists or states.
