war of words on missile defense has been calling on for quite some time now between russia and the uighurs with washington saying we need powerful interceptors against a potential attack from some dangerous state usually named iran or north korea and moscow saying why do you need interceptors for weapons that those rogue states don't have what we do so it's against russia the russians knew america's missile defense plans as an attempt to push that very precious parity principle that was said in the start treaty and now the federation of american scientists come up with a report that looks seem to russia's concerns and i'm joined by bottom of that very thought of ration thank you very much for joining me dr but thank you very much for that so from what i understand russians are not against all interceptors they are against the more advanced and the more capable wise could you expand on that well we started the study a couple of months ago to look into the technical side of what might be behind russia's concerns so there's not a tip in the west has been that russia is ideologically opposed t