Division of Church and State

I've found it interesting to follow the news articles, the posts, the photos of Pope Francis's recent trip to the USA. It seems many people had expectations of what the Pope should stress while he was a guest on US soil.

Prior to Pope Francis's arrival, I was curious how he would proceed; and found it interesting and compassionate. I liked this quote a friend put as a reply to a meme with the Pop's photograph and the caption: "Went to Congress to give a Speech... who was he representing?: 

"The Vatican as a STATE, a country, which it is. Other religious leaders who speak before Congress don't do those things either, because of current interpretation of what is "too religious". (The banners of Catholic schoolchildren at the airport saying "Jesus loves you" were removed by US authorities before he landed as being too religious for a government event.) In his homilies at the Vatican, speaking as the leading spokesperson for the Catholic church, his approach is different. He was speaking as a head of state addressing the US Congress."
 
Thus, an analogy would be if the Queen of England visited the USA, would we be disappointed if she acted and spoke as the head of state rather then as her position as Supreme Governor of the Church of England.

Another example would be if the USA had an official visit from the General Leader of Tibet who has the religious title of Dalai Lama. He would be invited to State functions in his government capacity as General Leader of his (exiled) country; however, he might schedule some non-state meetings in the function of his religious office.

That's part of the separation of church and state. People with both religious and state titles, must have to be very careful to walk a fine line I think the Pope did well.