Al Gore:

‘For the eight years that I spent in the White House every nuclear weapons proliferation problem we dealt with was connected to a reactor programme. People have said for years that there are now completely different [nuclear] technologies. OK, but if you have a team of scientists that can build a reactor, and you’re a dictator, you can make them work at night to build a nuclear weapon.’

Mohamed ElBaradei:

He predicted that the next wave of proliferation would involve "virtual nuclear weapons states", who can produce plutonium or highly enriched uranium and possess the knowhow to make warheads, but who stop just short of assembling a weapon. They would therefore remain technically compliant with the NPT while being within a couple of months of deploying and using a nuclear weapon.

"This is the phenomenon we see now and what people worry about in Iran. And this phenomenon goes much beyond Iran. Pretty soon … you will have nine weapons states and probably another 10 or 20 virtual weapons states."