for that, 2 1/2 years in the best case scenario. pompeo now in south korea to talk to president moon jae-in, says he does not know when he will meet next with the north koreans to continue the detailed negotiations. nic robertson is on the ground in seoul. nic, the secretary spoke to reporters on his way to seoul. what is your biggest takeaway from what he had to say? >> reporter: the idea of denuclearization will take 2 1/2 years. he hopes it will happen, and you you have to high light that, hopes it will happen. he pushed back strongly on the of complete, verifiable, irreversible denuclearization, the only word in thatocument they signed was the word complete. mike pompe in that word understood that the word