I have three kids under 4 years old, so I'm in the thick of behavioral correction all the time. While I have had no reason to spank my kids yet, I don't think it's something I would take off the table. We use a lot of Time Outs, Taking Away of Prized Items and Count Downs. Children are very frustrating, they know how to pick at every last nerve. While I would never use Violence to correct violent behavior, I think it only reenforces the violent behavior. I can see where a spanking to correct seriously dangerous behavior to themselves or others could be used.
I tried to show Junior some racism today and it was thwarted by the cops and Whitey.
Of course I'm a creationist. I believe man created god.