The Fourth ManFor the first time ever, New York Times bestselling author and former CIA operative Robert Baer tells the explosive story of how insiders believe a KGB mole rose to the highest ranks of the CIA. In the aftermath of the Cold War, US intelligence caught three high profile Russian spies. However, these arrests left major questions unanswered, and rumours have long swirled of another mole, often referred to as the Fourth Man. Three pioneering female