Iran parliament votes to reduce ties with Britain

[thir]

Most do - that's exactly what they agree to including in international law by signing the non-proliferation treaty, that the five existing nuclear powers stay that way and everyone agrees to work to stop any more countries getting them (in exchange for access to uranium for fuel, information, equipment etc). A few countries aren't signatories (notably India, Israel and Pakistan) and North Korea withdrew from it in 2003; Iran, however, signed it and remains bound today.

Thanks for updating me.

It's not just the existing nuclear powers, it's almost everyone who agreed that nuclear proliferation is a bad thing.

The whole thing would be more believable if said 5 powers renounced their own nuclear powers. As it is, it is just 'we are the good guys and should have it, noone else should.'