Vito says, "Whoever comes to you with this Barzini meeting, he's the traitor." But, who else but Tess or Clem might come to him with the Barzini meeting? When Michael tells Tom that it's Tess, Tom replies, "I always thought it would be Clemenza." Pretty clear where everyone's thinking was going.
Exactly Turnball. what i love about the Godfather is taht they dont spell everything out for you but they still give you the answers. Right before that scene both tessio and Pete are complaining to Mike that Barzini is starting to squeeze them out so it had to be one of them. Rocco was a rising star so he had nothing to gain for being a traitor, neri we all know wouldn't switch sides so it had to be Sally or pete
