I'll shed a little light on this. Personally, I am a Christian and proud of it. So were a good majority of this country's founding fathers. The reason that we have 'In God We Trust', 'Under God', the Ten Commandments in US courthouses etc, is that this nation was founded on the simple precept that man was always accountable to a higher power=God in whatever flavor (ie-religion) that you subscribe. It in no way endorses any one religion.
In this age of no accountability whereby no one wants to be accountable to anyone for anything
it frankly doesn't surprise me.
Interesting to note, our framers vehemently believed that this 'experiment' that is the United States of America would only last as long as a Republic as long as the citizens recognized that they were accountable to something larger than just themselves.