Ok I can’t see this as assurance enough.
We’ve had agreements in place to stop it as it’s a threat no one wants.
And recently this report was issued
The global nuclear watchdog's board of governors has formally declared Iran in breach of its non-proliferation obligations for the first time in 20 years.
Nineteen of the 35 countries on the board of the International Atomic Energy Agency (IAEA) voted for the motion, which was backed by the US, UK, France and Germany.
It says Iran's "many failures" to provide the IAEA with full answers about its undeclared nuclear material and activities constitutes non-compliance. It also expresses concern about Iran's stockpile of enriched uranium, which can be used to make reactor fuel but also nuclear weapons.
Iran condemned the resolution as "political" and said it would open a new enrichment facility.
It follows a report from the IAEA last week which criticised Iran's "general lack of co-operation" and said it had enough uranium enriched to 60% purity, near weapons grade, to potentially make nine nuclear bombs.