uranium activity, has been sort of internal shows of force. look, i'm not take credit for toning them down. and i do think that my visit was timely. that we had an impact. that they responded. especially their military person that i talked to, the top military and the top nuclear negotiator. was, look, you guys, if you want negotiation, if you want to have some assistance in the areas of some food, your people are in very bad shape, energy assistance, sanctions lifted eventually, you can't keep acting like this. and one way you can send a signal to the international community is take some arms control measures but don't retaliate. this is a drill by the south koreans. they're legitimate self-defense. it's going to be a routine drill. stop all this rhetoric and act like international players and international community. i believe they responded.