Is Sean Hannity A Racist?

On his radio program yesterday a lady called in made many racially motivated and hateful comments about Obama. What she said came right out of the KKK playbook. Hannity merely agreed with her and did not make the slightest effort in stopping her from making these public racist views. The only thing that I can conclude is that Hannity himself is a racist. Or maybe he just wants controversy to uplift his ratings. I wonder is he actually a bonafide dyed in the wool bigot and racist?