He also needed to keep track of Fredo, as in, "Fredo, where are you going?" "I'm gonna get me a real drink."
I think the money was to string Fredo along. He had to suspect everyone and Fredo was the one with everything to gain based on the Senate's charts where he is listed as underboss. Like you said before Mike is constantly watching Fredo's reactions. How do you tell someone you trust them? Trust them with $2 mil cash, that's how. He pours honey in Fredo's ear and Fredo lets his guard down. This is the only reason I can see, other than being well greased from a night on yhe town, that he slips up in front of Michael at the show. I wouldve cut my own tongue out right there.
