1. Strong numbers for Francis from American Catholics
2. An exhibit at Berlin’s Jewish Museum lets you pose your questions to a real life Jew
3. The global leaders in open government data are New York and... Edmonton?
5. Recovery watch: America may be the world's top exporter of sperm
War of Ideas is a blog on the theory behind the practice of global politics. Foreign Policy associate editor Joshua E. Keating brings you the latest research, data, and intellectual debates from around the world.