One must keep in mind that Fredo's impending murder is in Michael's mind at this time. He cannot listen to reason about Roth, because he cannot murder his brother but let Roth survive.
No. Fredo does not reveal his complicity until several later scenes.
"Generosity. That was my first mistake." "Experience must be our only guide; reason may mislead us." "Instagram is Twitter for people who can't read."
