It had been a rough day, and though she didn’t know it yet, things were about to get worse. At that hour a Northwest Airlines flight from Amsterdam was closing in on Detroit, carrying a young Nigerian passenger who had hidden eighty grams of military explosive in his clothes. The Nigerian’s attempt to blast the plane from the sky would ring alarm bells at CIA stations around the world and keep counterterrorism officers busy through the night. Yet back home in snow-covered Fredericksburg, Virginia, it was still blissfully quiet, and Matthews’s kids would be waiting to open their Christmas presents. She would join them via Skype. She clicked “home” and waited for the connection. In a few seconds a small video panel appeared, and Matthews was looking at the twinkling lights of a Christmas tree in her own family room. “Hi, Mommy,” came the chorus of greetings from her three children. Matthews’s husband had set up the video connection so the kids could see their mother during their regular chats while she was overseas.