This atomization of the nation—the hunkering of the population into a thousand premodern fiefs—proved to be ideal conditions for incubating a singularly virulent strain of terrorism that would shortly capture the attention of the world, and most especially the United States.

Commander Ghani* has just provided a vivid summation of the Pashtun principles of nang (honor), ghairat (pride), and badal (revenge), which—along with a fourth concept, melmastia (hospitality)—account for the most important tenets in an unwritten, overarching code of behavior known as Pashtunwali that has shaped culture and identity in this part of

Up there on the heights, far above the gloom of the valley floor, the otherwise barren slopes were dotted with graceful Chilgoza pines still washed with sunlight, their silver bark and viridescent needles glowing in the fleeting rays.

This canyon was the most dramatic landform they’d seen since arriving in Khost: the sort of geologic wonder one might encounter in Utah’s Zion National Park, or the Mogollon Rim of northern Arizona. One soldier remarked that it would be “an awesome place to go rock climbing.”

At their root, most aspects of Pashtunwali are about preserving honor and respect. And in Pashtun society, respect ultimately derives from demonstrations of strength and courage.

Yousef had learned the art of making bombs from a manual written by the CIA for the mujahideen to use in their struggle against the Soviets. He was given the CIA instruction booklet while attending an al-Qaeda training camp in Khost, Afghanistan, in 1991 or 1992.

“What I take from Pat Tillman is that you are not who you are at your worst moment. After what Pat did to Darin, it seems like he really turned his life around and became quite an honorable person.”

As Aeschylus, the illustrious Greek tragedian, noted in the fifth century B.C., “In war, truth is the first casualty.”

The bomb had been assembled, delivered, and detonated by a Kuwaiti named Ramzi Yousef, under the supervision of his uncle Khalid Sheik Mohammed, who would later be identified as “the principal architect” of the attack against the same buildings on September 11, 2001.