I've decided to read DW. And only skim the video.

Ok so we don't even get access to these documents, and no sources get directly cited.

We don't get an extensive list on everyone who had access to these documents, just two organizations out of the alleged more.

Yahoo news supposedly cite an unnamed western official, and the rest of the coverage doesn't at all call to Süddeutsche zeitung...

And the video has the format of a standard thriller reporting that is used to manipulate emotions, which doesn't bode well for it.

Shit's dubious at best with all the Russia scaremongering already going around.