Well I am not surprised that Sean would bring up the idea of a married priesthood in the RCC. The Eastern side permits it, and those who are Anglican priests in that rite are married, so who knows, it could happen.
The problem is that Sean is monumentally ignorant about the Catholic Church and its history. And the idea that celibacy has caused the pedophile scandal is moronic! It was truly painful to hear him today. Rush - who is not Catholic - is so much more intelligent talking about the Church.