ifnorth korea, i'm wondering you can discuss more specifically what the exact predispositions are for the u.s. to engage in talks we would like to have with them. we are under a time crunch with 's rapid acceleration of technology. how can you be confident that the functions will create a calculus before it's too late? >> the best signal north korea could give us that they are about stoppingk this missile launches. period of extended time where they have not taken some provocative action. that would be the first and strongest signal they could send us, stop these missile launches. obviously we have other means of , tounication open to them sort of hear from the, if they have a desire to walk the talk. in terms of the most recent round of sanctions, i think your point is well taken, when do these actually have a practical bite on the revenues. i think perhaps the more important elements of that, it's just the message this sends to north korea of how unacceptable the entire international community finds what they are doing to be. and i think also it sends a partiesessage to two that we