Do you guys remember when Korra is telling Tenzin what Amon did back in the warehouse?
He said “That’s impossible” but, you just look in his eyes. He is looking to the right.
I’m not a psychologist, but a lady tought me in a social habilities course that the people look at the right when they are lying or imagining something.
What if Tenzin knows something about Amon plans of debending benders?