Steve Coll’s Pulitzer Prize-winning “Ghost Wars” laid out in gut-wrenching detail the chain of events that led from one modern war in Afghanistan -- against the Soviets -- to the Sept. 11 attacks and the brink of another conflict. When the book came out in 2004, the US-led war against the Taliban and Al Qaeda seemed on the wane, at least compared to the then-raging insurgency in Iraq. Soon, however, with the aid of their longtime sponsors in Pakistan’s Inter-Services Intelligence agency, the Taliban would reconstitute their movement and seize control over great swathes of the Afghan countryside, dueling the