It was always galling to the Americans, and I can understand their point of view, that although they paid the piper they could not call the tune. The CIA supported the mujahideen by spending the taxpayers' money, billions of dollars of it over the years, on buying arms, ammunition, and equipment. It was their secret arms procurement branch that was kept busy. It was, however, a cardinal rule of Pakistan's policy that no Americans ever become involved with the distribution of funds or arms once they arrived in the country. No Americans ever trained or had direct contact with the mujahideen, and no American official ever went inside Afghanistan.