>> arwa, let's talk a little bit about that evidence because there were new pictures released and the pictures show apparently russian troops dressed in camouflage actually in eastern ukraine leading some of these operations going after these ukrainian government facilities. these buildings in eastern ukraine. the yukrainians are saying, the u.s. backs them up, this proves putin and other western officials are lying when they say russia was not responsible for at least part of this. >> reporter: right. and the yukrainians say in thes pictures they release that are part of a -- they have photographs of a man they say were taken in eastern ukraine. they also have photos dating back to 2008 allegedly of this