So why does it have to be a secret? Just come out and say you blew the bridge up.. it's war after all. I don't necessarily believe that Russia is killing civilians, unless they partake in the war Red Dawn style, which doesn't exactly make them civilians. I don't believe either side went about anything the right way, so this is just a product of what both sides created and are reaping what they have sown.
Not only that, but Ukraine hasn't been honest, which had shed a lot of doubt on their credibility. Plus they are trying to pull the world in and taking billions of US dollars in the process which could escalate the war. If Russia was going thru pulling folks out of their houses and lining them up, that would be one thing, but that doesn't seem to be the case.