What did the Pope mean by “sins against unity”?

 PIC house with cracked foundation 

Ideas are like houses, and other people are like . . . well, like people who live in those houses. If I lived next to a house with a huge, gaping crack in the foundation, and I discovered that a lovely young family was innocently planning to move into that house, what should I do? Should I keep quiet, in the name of peace and unity?   

Read the rest at the Register.