Two significant developments in the past several decades have been the collapse of communism as an ideology and the general acceptance, in rhetoric, if not practice, of liberal democracy.

The basis of association and antagonism among countries has changed over time.

The argument now that the spread of pop culture and consumer goods around the world represents the triumph of Western civilization trivializes Western culture. The essence of Western civilization is the Magna Carta, not the Magna Mac. The fact that non-Westerners may bite into the latter has no implications for their accepting the former.

Global politics remains extremely complex and countries have different interests, which will also lead them to make what might seem as rather bizarre friends and allies.

Certainly here in the U.S., we've had fundamentalist movements that have taken very critical and hostile attitudes toward immigration and the assimilation of immigrants into our society and culture. So these tendencies are fairly universal. The problem is what if they get out of hand and become the dominant factor in a society, which can only lead to the oppression of minorities or even to war with neighboring societies with differing cultures. That's why it seems to me it's important to try to keep these tendencies toward extremism under control.

In the 19th century it was basically nationality and people trying to define their nationalism and create states which would reflect their nationalism. In the 20th century, ideology came to the fore, largely, but not exclusively, as a result of the Russian Revolution and we have fascism, communism and liberal democracy competing with each other. Well that's pretty much over.

Except under rare circumstances, I don't write responses to criticism.