We need to have a situation where we know precisely what they have agreed to do, what they have agreed to abandon so we can precisely react to that.

We cannot have a situation where the DPRK pretends to abandon its nuclear programs and we pretend to believe them,

For us, the fundamental question is whether the DPRK (North Korea) is prepared to abandon its nuclear programs. And as you know its nuclear programs are involved with the production of materials for nuclear weapons,

It is very clear that we have laid out the plan by which the DPRK must first abandon its weapons, abandon all its existing nuclear programs, get itself back into the (nuclear) Non-proliferation Treaty in good standing,