But the vehicle just drove back down the track, as casually as his fatherâs station wagon when he used to leave for work, until the sound of its engine was lost in the stillness of the night. That slowness terrified him. It was too calm, too rehearsed, indicative of a bigger plan.
Ten, maybe fifteen minutes later, his thoughts were interrupted by the sound of someone speaking Urdu, coming from close by. Oaksâs tired brain struggled to work out what was happening, whether he was hallucinating. He tried to focus on the name the man had given when he first spoke. It hung in the air above them like a paper kite, nagging at Oaksâs mind as it bobbed in the evening breeze: Salim.
3
This was the moment Omar Rashid had been trained for, but he had never actually expected it to happen, not to him. But there it was, an unambiguous flashing light on his console. He knew his life would never be the same again. He was just a junior analyst on the SIGINT graveyard shift, always had been, ever since heâd signed up to the National Security Agency at Fort Meade in Maryland. And that was exactly how he liked it. Success happened to the ambitious, to the hungry. Rashid was more than happy to draw his modest salary and listen through the night to the regional traffic, before heading home to his basement apartment in Baltimore. He enjoyed his work, but it wasnât loyalty to the NSA that drove him.
A few hours earlier, he had tuned in to a pro-Western Pakistani politician and his wife arguing on a phone in Lahore. Later, when the husband had returned to his home in a wealthy suburb, he had listened to them making love, too, thanks to a wire installed in the bedroom by the ISI, Pakistanâs main intelligence agency. The ISI was unaware that its heavily encrypted surveillance frequencies had been breached, but Rashid didnât concern himself about that. Just as he tried not to dwell on the pleasure he derived from such interceptions, known as âvinegar strokesâ among the nightshift analysts. He had feigned indifference when he handed in his transcript to the line manager, but it was a gift, and he hoped she would enjoy it later. Didnât everyone at SIGINT City?
This, though, was different. The flashing light was an Echelon Level Five alert, triggered by a keyword integral to one of Fort Meadeâs biggest-ever manhunts. Rashidâs able mind worked fast. Despite Echelonâs best efforts, it was impossible for the West to monitor more than a fraction of the worldâs phone calls and emails in real time. Most of the daily âtakeâ was recorded and crunched later by NSAâs data miners, who drilled down through the traffic, searching for suspicious patterns. They worked out in Utah, where a vast data silo had been built in the desert. Rashid was one of a handful of Urdu analysts who worked in the now. He cast his net each day on the Af-Pak waters and waited.
Real-time analysts knew where to listen, but the odds of catching anyone were still stacked against them. As a result, Rashid was left alone. Anything he could bring to the table was a bonus. But if this latest intercept was what the flashing light suggested it was, he would be fêted, hailed as a hero. His work would suddenly be the centre of attention. A manager would study his previous reports, discover a pattern, the unnaturally high number of bedroom intercepts. Someone would sniff the vinegar.
The keyword and a set of coordinates in North Waziristan were triggering alarms all over the system. Rashid adjusted his headphones. He was listening to one half of a mobile-phone conversation in Urdu: the other person must have been speaking on an encrypted handset. COMINT would track it down later, unpick its rudimentary ciphers. The voiceprint-recognition software had already kicked in, analysing the speakerâs vocal cavities and articulator patterns: the interplay of lips, teeth, tongue. Rashid didnât need a computer to