Christians are not advancing the prestige of the U.S. by tying its origins to God; they are promoting their idea of God by associating it with the very successful brand that is America.
Though this new law will partially reduce the NSA’s ability to collect this metadata, it will not significantly hinder the vast majority of the U.S. agency's large-scale surveillance activities.
The shadow of 9/11 still haunts U.S. society and there is no way that more than a few mainstream politicians are going to be willing to lower the country’s guard.