The Russians are Coming!

And here's something I've been pondering.  I can understand people's concern over Russia using Facebook to influence our election.  But how is Russian propaganda different from US Democratic or Republican or corporate or Think Thank propaganda?  If we're concerned that Russia can use keenly targeted psychological manipulation of voters - what about advertising in general and the domestic forces that do the same?  If I found out that our water supply in St. Louis were being poisoned by Russia, I'd be no happier to learn that, on the contrary, it was being poisoned by Disney.