very high ultraviolet component - just to kill surface germs. A small breeze tugged at his shirt and whispered through his dark hair. The nanotech laboratory suites were kept under positive pressure to minimize the risk of any airborne contaminants from the public areas of the building. Ultra-efficient particulate air - or "ULPA" - filters fed in purified air at a constant temperature and humidity.
The Harcourt lab suite was arranged as a series of "clean rooms" of increasing rigor. This outer rim was an office area, crammed full of desks and workstations piled high with reference books, chemical and equipment catalogs, and paper printouts. Along the east wall, blinds were drawn across a floor-to-ceiling picture window, obscuring what would otherwise be a spectacular view of the Sangre de Cristo Mountains.
Farther inside the suite came a control and sample preparation area. Here were black-topped lab benches, computer consoles, the awkward bulk of two scanning tunneling electron microscopes, and the other equipment needed to oversee nanotech design and production processes.
The true "holy of holies" was the inner core: visible only through sealed observation windows on the far wall. This was a chamber full of mirror-bright stainless steel tanks; mobile equipment skids loaded with pumps, valves, and sensor devices; vertically mounted disk frames for osmotic filters; and stacked Lucite cylinders packed with various grades of purification gels, all connected with looping lengths of clear, silastic tubing.
Smith knew that the core could be reached only through a succession of air locks and gowning roofhs. Anyone working inside the production chamber had to wear fully sterile coveralls, gloves and boots, and an air-displacement breather helmet. He smiled wryly. If the Lazarus Movement activists camped outside ever saw anyone wearing that alien-looking getup, it would confirm all their worst fears about mad scientists toying with deadly toxins.
In truth, of course, the real situation was exactly the reverse. In the world of nanotechnology, humans were the source of danger and contamination. A falling flake of skin, a hair follicle, the wafted particles of moisture breathed out in casual conversation, and the shotgun blast of a sneeze all could wreak havoc on the nanoscale, releasing oils, acids, alka-lines, and enzymes that could poison the manufacturing process. Humans were also a rich source of bacteria: fast-growing organisms that would consume production broths, clog filters, and even attack the developing nanodevices themselves.
Fortunately, most of the necessary work could be done remotely from outside the core and the control and sample preparation chambers. Robotic manipulators, computer-controlled motorized equipment skids, and other innovations greatly reduced the need for humans to enter the "clean rooms." The incredible level of automation in its lab suites was one of the Teller Institute's most popular innovations, since it gave scientists and technicians far more freedom of movement than at other facilities.
Smith threaded through the maze of desks in the outer room, making his way toward Dr. Philip Brinker, the senior scientist for Harcourt Bio-sciences. The tall, pale, rail-thin researcher had his back to the entrance, so intently studying the image relayed from a scanning electron microscope that he didn't catch Jon's cat-quiet approach.
Brinker's chief assistant, Dr. Ravi Parikh, was more alert. The shorter, darker molecular biologist looked up suddenly. He opened his mouth to warn his boss, then closed it with a shy smile when Smith winked at him and motioned for silence.
Jon stopped just two feet behind the two researchers and stood at ease.
"Damn, that looks nice, Ravi," Brinker said, still peering at the image on the screen in front of him. "Man, I bet our favorite DoD spook is gonna bow down before us when he sees this."
This time Smith did not bother hiding his grin. Brinker always called him a spook - a spy. The Harcourt scientist meant it as a joke, a kind of running gag about Smith's role as an observer for the Pentagon, but Brinker had no clue as to just how close that was to the truth.
The fact was that Jon was more than just an Army officer and scientist. From time to time he took on missions for Covert-One, a top-secret intelligence outfit reporting directly to the president. Covert-One worked in the shadows, so far back in the shadows that no one in Congress or the of-' ficial military-intelligence bureaucracy even knew it existed. Fortunately, Jon's work here at the Institute was purely scientific in nature.
Smith leaned forward, looking right over the senior Harcourt scientist's shoulder. "So what is it exactly that's going to make me worship