because as so many other religions, there is a misinterprettation. evangelicals are seen to be lunatics and crazy bible thumpers and catholics are said the same way. but we are people who have a strong faith in god. and we want the world to understand why we have that faith and i think that is what the pope wants to do >> all right. our behind the headlines segment is celibacy and the catholic church. mary johnson was a nun who spent 20 years in mother teresa's missionaries of charity order. she resigned and is a married atheist and writer live in the southwest. we spoke with her about her fascinating and daring book, "an unquenchable thirst" >> on the one hand we were trying to help the poor. we were feeding them, sheltering them, comforting them. but on the other, mother teresa understood that suffering was what brought a person close to god. and she felt like the poor were closer to god because they were suffering more. >> mary johnson joined the order to help the poor of calcutta, india. instead her time was riff inwith inner conflict. mother ter