Petitions for en banc rehearings are rarely granted. A Senior Judge for the United States Court of Appeals for the Eighth Circuit provides a history and reasoning of the rehearing process and his personal observations on those petitions and processes in today's court.
Richard S. Arnold,
Why Judges Don't Like Petitions for Rehearing,
3 J. App. Prac. & Process 29
Available at: http://lawrepository.ualr.edu/appellatepracticeprocess/vol3/iss1/3