Opinion: Can Christian citizenship survive?

The entire story is at http://www.abpnews.com/index.php?option=com_content&task=view&id=4165&Itemid=9

It seems increasingly clear that Christians in America have no viable understanding of what used to be called “Christian citizenship.”

Let’s use these two working definitions to anchor our discussion:
Citizenship is the condition of being vested with the rights, privileges, and duties associated with being a citizen; that is, a member of a political community who owes some sort of allegiance to that community and is in turn entitled to its protection.

Christian citizenship refers to the particular rights, privileges, and duties of Christians in relation to the nations in which they are citizens, and the way these rights and responsibilities cohere with their allegiance to Jesus Christ as Lord.

A first observation is that most Americans, simply as Americans, have thought very little about basic questions of citizenship. We may be aware of our rights and privileges in relation to the United States of America and its various levels of government, but tend to think very little about our correlated duties and responsibilities. Probably most of us can barely name any of those duties, other than paying taxes and obeying the law.