In pictures: Americans on papal visit
Church and state

Jeff Wismer, atheist campaigner

"As an atheist, I don't recognise the Pope as an official world diplomat. He's not a sacred cow, and I am not in awe of him.

"I believe in the separation of Church and state and I'm here to defend the constitution.

"The Pope is here to influence the president - but he doesn't need the Pope's advice."

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