cnn has learned that trump administration officials are discussing how to respond if north korea makes a provocative new move, a satellite launch. tensions between the two countries have escalated since president trump's failed summit with kim jong-un in hanoi, and any weapons tests would go against the repeated assurances we've heard from president trump about the progress he's made with north korean leaders. >> now there's no missile testing, there's no rocket testing. there's no nuclear testing. >> chairman kim promised me last night, regardless he's not going to do testing of rockets and nuclear -- not going to do testing. >> all right. so joining me now to talk about this, cnn national security reporter kylie atwood. what are you hearing about how white house officials are preparing for this behind the scenes? >> well, ryan, internally the white house is having discussions right now about how they should react if north korea