Created in the aftermath of World War II, the Central Intelligence Agency relied on women even as it attempted to channel their talents and keep them down. They were unlikely spies, which is exactly what made them perfect for the role. Because women were seen as unimportant, pioneering female intelligence officers moved unnoticed around Bonn, Geneva and Moscow, stealing secrets from under the noses of their KGB adversaries. Back at headquarters, women built the CIA’s critical archives --- first by hand, then by computer. And they noticed things that the men at the top didn’t see. As the CIA faced an identity crisis after the Cold War, it was a close-knit network of female analysts who spotted the rising threat of al-Qaeda --- though their warnings were repeatedly brushed aside.