The Decline of an Empire

Some recent reading led me to think about what history would tell us that leads to the fall of a nation. I found the following:

In The Decline and Fall of the Roman Empire, completed in 1787, Edward Gibbon (English historian and Member of Parliament) lists the following reasons for that fall:
1. The rapid increase of divorce; the undermining of dignity and sanctity of the home, which is the basis of human society.
2. Higher and higher taxes and the spending of public money for free bread and circuses for the populace.
3. The mad craze for pleasure; sports becoming every year more exciting and more brutal.
4. The building of gigantic armaments when the real enemy was within: the decadence of the people.
5. The decay of religion—faith fading into mere form—losing touch with life and becoming impotent to guide the people.

My question is: How are we doing? Do the facts listed above sound familiar in our day? What can we do to make society better?

Here are some statistics about Christianity and religion in our world:

http://christianity.about.com/od/denominations/p/christiantoday.htm

What do you think?