According to author James Risen, at some point after 9/11 but before the start of bombing in Afghanistan, “US intelligence located Osama bin Laden, but the US military was not prepared to strike him. [US] intelligence officials say that at the time, the US military was developing a plan for an air campaign over Afghanistan that was not flexible enough to take advantage of the sudden windfall of intelligence concerning bin Laden. This little-known opportunity to kill bin Laden came before the terrorist leader fled into the mountains of southeastern Afghanistan, where he became much more difficult to track.” [Risen, 2006, pp. 185]