The three horsemen of the Apocalypse.

The most effective and least expensive . . . way to conduct a war of self-defense against the Jihad . . . is first of all to recognize that the chief instruments of the Jihad are the Money Weapon, Da'wa [intensive indoctrination], and demographic conquest, and that these, as opposed to the easily recognized weapon of terrorism, are likely to be perceived and dealt with resolutely only by those who have come to understand the texts, the tenets, the attitudes of Islam. Such people are, it turns out, at this point quite few in number.

"What's Going On At The Pentagon?" By Hugh Fitzgerald, New English Review, 1/4/08.