Not since the Revolutionary War has America faced a greater threat to its existence than it does today. A worldwide network of terrorists is bent on destroying us and everything we value. All the more reason to make clear on Flag Day the principles for which we stand. In this age of diversity-worship, it is considered axiomatic that all cultures and countries are equal. Western culture—and its most consistent and highest expression, America—it is declared, is in no way superior to that of any other culture, not even to tribes of cannibals. To deny the equality of all cultures, claim...