RE:IAEA Fuel BankThere are some political reasons for doing that Trips...the IAEA wanted countries to be able to access nuclear power but did not want quantities of nuclear material falling into the wrong hands through less than adequate security measures. The stockpile is to give access to the material for peaceful purposes but controlling it so it does not get used for weapons. Net result is lots of enriched Uranium in storage. Enrichers will be required to provide that inventory as well as top it up as required. I like Word Nuclear News...a great resource for facts as opposed to the blather I sometimes see posted here.
Malcolm