Eurasian Invasion

We all know that fusion is hot, sizzling, more caliente than a salsa beat. It's that multiculti urge that propels us to douse a hamburger with teriyaki sauce or buy an Armani jacket with a Nehru collar. Such marriages of East and West are a harmless intermingling of cultures: a war never started by adding a dollop of wasabi to potato chips or a bindhi to Madonna's forehead.

But blending people is more dangerous. The world generally prefers its citizens in their own neat categories: Chinese, Japanese, Siamese. They represent the sanctity of our nation-states, our flags, our soccer teams. After all,...