In the twilight of the Cold War, the United States spent millions of dollars to supply Afghan schoolchildren with textbooks filled with violent images and militant Islamic teachings, part of covert attempts to spur resistance to the Soviet occupation. The primers, which were filled with talk of jihad and featured drawings of guns, bullets, soldiers and mines, have served since then as the Afghan school system's core curriculum. Even the Taliban used the American-produced books, though the radical movement scratched out human faces in keeping with its strict fundamentalist code. What seemed like a good idea in the context of the Cold War is being criticized by humanitarian workers as a crude tool that steeped a generation in violence. Many of the 4 million texts being trucked into Afghanistan, and millions more on the way, still feature Koranic verses and teach Muslim tenets. The White House defends the religious content, saying that Islamic principles permeate Afghan culture and that the books are fully in compliance with U.S. law and policy." Legal experts, however, question whether the books violate a constitutional ban on using tax dollars to promote religion.