first there's very often the deal would involve abandoning core parts of the universal czech cla raftion humration of and western countries aren't willing to do that. and second you could get the confession and not get anything in response. so it has been talked about in the past few years and doesn't seem to be a useful avenue. even the russians don't raise it anymore. we have another one? go ahead. >> thomas schwartz, also at cna. i think mr. miller mentioned early on that putin perceives himself under awhack tack attac west is aiming for regime change. and going after the ole garks was mentioned several times. are these two things reconcile able? are we risking unwanted escalation by threatening the very thing that you said that he feels is fundamentally at risk here? >> in my view, it's important to go after those people who are involved in this -- this type of activity or pursuing this activity either officially or unofficially and who are tied to president putin. and at the same time to show that we have limited aims to state we have limited aims and by the actions we take, not -- not demons