In theory, the U.S. has separation of church and state. In practice, public displays of Christianity are generally treated as wholesome, quintessential Americana. Non-Christian religions in the public sphere, in contrast, are often treated as curiosities at best and threats at worst. Religious minorities are told -- implicitly or explicitly -- that they aren't entirely American and that America isn't for them. Americans got a small reminder of that truth over the weekend after a video of a group of Christians singing to the other passengers on an airplane flight went viral. The video appears to have been shot by a pastor named Jack Jensz Jr. -- he uploaded the same video to his Instagram account. As you can see in the video, some passengers seem amused; some are recording the performance with their phones. Some appear indifferent or bored.