Michael and Tom at the Desert Inn -
Extracts:
Michael: Where's my brother?
Tom: Uh -- I think he got out He must be somewhere in New York
Michael: Alright I want you to get in touch with him
Why would Michael think, expect Tom to know the whereabouts of Fredo and how to contact Fredo
I started a thread that touches on this subject a long while ago:
http://www.gangsterbb.net/threads/ubbthreads.php?ubb=showflat&Number=472494&Searchpage=1&Main=16944&Words=%2BFredo+%2BRoth+%2Bconspiracy&Search=true#Post472494
Short answer: Fredo told Tom everything and Michael guessed it. Don Cardi, one of our esteemed members, even created a plausible dialog between Tom and Fredo.