Cain needs all the exposure he can get. The more outsiders see him the better he looks. Its free exposure and he is strong enough and has the moxie to stand toe to to with Letterman. Its a good move to see him relaxed and funny. Cain will come accross human and it will be good long term for him.
Most of America is not watching Fox news and will not even know Herman exists. Let him hit the circut.
Agreed.