Thomas Schärtl observes that many trends in the United States are adapted in Europe and especially in Germany, yet there remain categories that are incommensurable. What can appear to be an ideal pluralism in the United States can also be interpreted as “bubbles” that reveal a lack of interaction among various groups. Consumerism and individualism have an impact on even some US Catholic bishops, leading to actions that appear strange to a German observer, such as protesting President Obama's invitation to speak at Notre Dame and teaming up politically with conservative Evangelical and Pentecostal Christians. German Catholics need to safeguard the relationship between religion and reason. Dennis Doyle agrees with Schärtl on the big picture but offers qualifications on specific points, noting especially the positive dimensions of Catholic interaction with Evangelicals and Pentecostals.