they have been valua, cut off by countries very close to us.y cannot trty to keep a secret. >> people have said it is embarrassing for the u.s. we don't often see the intelligence the u.s. is acting upon, how it analyzes intelligence and uses it. here we see in the case of ukraine, we have heard from kurt volker, who said he's less worried about the leak and what allies will of the way that intelligence is being analyzed. >> mostf the damage is not so much in this case the sourcesth. there are some ways they can be compromised. most of the material we are dealings called finished intelligence. not real reporting from a particular source. analysis that drew on that reporting. a lot of it is asuch political and diplomatic in a direct intelligence sense. y of the challenges the ukrainian military is facing, the subject of a lot of the material has not been a secret. the press has been reporting on that for quite some time. what is damaging for it to be seen as something to be discussed in the u.s. government , which will hurt the ability of the u.