The Legend of Korra - Book 2: Spirits

 Spoiler

I guess it was expected that unalaq was in league with the dark spirit all along. Suppose that means tenzin's undermining of his spiritual knowledge isn't quite necessary since he probably told unalaq everything he needed to know.

I'm not really understanding how the whole varrick situation is going to tie in with the spirit world situation. Maybe once the portals are closed again he's going to try and incite war anyway to make money?

Given the previous episodes and how the things have been turning over and over again I wouldn't discard that Varrick is a good guy after all.