_OVERSIGHT_019487 9/29/16 5:51PM | | x | Contents CHAPTER 15 Did Snowden Act Alone? 146 carter 16 The Question of When 156 carter 17 The Keys to the Kingdom Are Missing 168 CHAPTER 18 The Unheeded Warning 185 part THREE |THE GAME OF NATIONS CHAPTER 19 The Rise of the NSA 195 carter 20 The NSA’s Back Door