This is an anecdote at the nth remove, so it may be of questionable veracity
(although someone here may be able to refute or verify it, but I offer it as
perhaps of interest:
 
Concerning Ginsberg's recant rant, John Walsh once told me that when
Ginsberg made his famous visit to EP, he was not the only guest that day. (I
believe it was Peter Russell) had told John that he was there too, that G.
was very quiet, and the famous exchange did not take place.
 
I have always felt that this rang more true than Ginsberg's story.
 
> ----------
> 
> Pound's recanting theories propagated by Donald Hall, Allen Ginsberg and
> Co. were intended to show an ancient, decadent, frustrated, castrate Pound
> palatable to the liberals and the politically correct mob. In Canto CXX he
> asked for forgiveness "those I love".  Obviously in this list aren't
> bankers, Baruch, F.D.R., university professors and some members of the
> "Pound industry". 
>