He left his car next to the first big Seagrave and climbed on top of the fire engine. Some heavy structural material — the stadium roof, he supposed — was in the parking lot to his right. More had landed a quarter mile away in the mercifully empty parking lot of a shopping center. Callaghan used his portable radio to order the next wave of rescue units to check both the shopping center and the residential area that lay beyond it. The smaller fires would have to wait. There were people in the stadium who needed help, but his firefighters would have to fight through two hundred yards of burning cars to get to them…
Just then he looked up to see a blue Air Force rescue helicopter. The UH-1N landed thirty yards away. Callaghan ran over towards it. The officer inside the back, he saw, was an Army major.
“Callaghan,” he said. “Battalion chief.”
“Griggs,” the Major replied. “You need a look-around?”
“Right.”
“'Kay.” The Major spoke into his headset, and the helicopter lifted off. Callaghan grabbed a seatbelt, but didn't strap in.
It didn't take long. What appeared to be a wall of smoke from street level became discrete pillars of black and gray smoke from overhead. Perhaps half of the cars had ignited. He could use one of the driving lanes to get closer in, but some of the way was blocked by wrecked and burning cars. The chopper made a single circuit, bouncing through the roiled, hot air. Looking down, Callaghan could see a mass of melted asphalt, some of it still glowing red. The only spot not giving off smoke was the south end of the stadium itself, which seemed to glisten, though he didn't know why. What they could see appeared to be a crater whose dimensions were hard to judge, since they could only catch bits and pieces of it at a time. It took a long look to determine that parts of the stadium structure remained standing, perhaps four or five sections, Callaghan thought. There had to be people in there.
“Okay, I've seen enough,” Callaghan told Griggs. The officer handed him a headset so that they could speak coherently.
“What is this?”
“Just what it looks like, far as I can tell,” Griggs replied. “What do you need?”
“Heavy-lift and rigging equipment. There are probably people in what's left of the stadium. We gotta get in to them. But what about the — what about radiation?”
The Major shrugged. “I don't know. When I leave here, I'm picking up a team from Rocky Flats. I work at the Arsenal, and I know a little about this, but the specialists are at Rocky Flats. There's a NEST team there. I need to get them down here ASAP. Okay, I'll call the guard people at the Arsenal, we can get the heavy equipment down here fast. Keep your people to windward. Keep your people at this end. Do not attempt to approach from any other direction, okay?”
“Right.”
“Set up a decontamination station right there where your engines are. When people come out, hose them down — strip them and hose them down. Understand?” the Major asked as the chopper touched down. “Then get them to the nearest hospital. Upwind — remember that everything has to go northeast into the wind so you know you're safe.”
“What about fallout?”
“I'm no expert, but I'll give you the best I got. Looks like it was a small one. Not much fallout. The suction from the fireball and the surface wind should have driven most of the radioactive shit away from here. Not all, but most. It should be okay for an hour or so — exposure, I mean. By that time, I'll have the NEST guys here and they can tell you for sure. Best I can do for now, Chief. Good luck.”
Callaghan jumped out and ran clear. The chopper lifted right off, heading northwest for Rocky Flats.
“Well?” Kuropatkin asked.
“General, we measure yield by the initial and residual heat emissions. There is something odd about this, but my best figure is between one hundred fifty and two hundred kilotons.” The major showed his commander the calculations.
“What's odd about it?”
“The energy from the initial flash was low. That might mean some clouds were in the way. The residual heat is quite high. This was a major detonation, comparable to a very large tactical warhead, or a small strategic one.”
“Here's the target book,” a lieutenant said. It was just that, a clothbound quarto-sized volume whose thick page's were actually fold-out maps. It was intended for use in strike-damage evaluation. The map of the Denver area had a plastic overlay that showed the targeting of Soviet strategic missiles. A total of eight birds were detailed on the city, five SS-18s and three SS-19s, totalling no fewer than sixty-four warheads and twenty megatons of yield. Someone, Kuropatkin reflected, thought Denver a worthy target.
“We're assuming a ground-burst?” Kuropatkin asked.
“Correct,” the Major replied. He used a compass to draw a circle centered on the stadium complex. “A two-hundred-kiloton device would have a lethal blast radius this wide…”
The map was color-coded. Hard-to-kill structures were colored brown. Dwellings were yellow. Green denoted commercial and other buildings deemed easy targets to destroy. The stadium, he saw, was green, as was nearly everything immediately around it. Well inside the lethal radius were hundreds of houses and low-rise apartment buildings.
“How many in the stadium?”
“I called KGB for an estimate,” the lieutenant said. “It's an enclosed structure — with a roof. The Americans like their comforts. Total capacity is over sixty thousand.”
“My God,” General Kuropatkin breathed. “Sixty thousand there… at least another hundred thousand inside this radius. The Americans must be insane by now.” And if they think we did it…
“Well?”Borstein asked.
“I ran the numbers three times. Best guess, one-fifty-KT, sir,” the Captain said.
Borstein rubbed his face. “Christ. Casualty count?”
“Two hundred-K, based on computer modeling and a quick look at the maps we have on file,” she answered.
“Sir, if somebody's thinking terrorist device, they're wrong. It's too big for that.”
Borstein activated the conference line to the President and CINC-SAC. “We have some early numbers here.”
“Okay, I'm waiting,” the President said. He stared at the speaker as though it were a person.
“Initial yield estimates look like one hundred fifty kilotons.”
“That big?” General Fremont's voice asked.
“We checked the numbers three times.”
“Casualties?” CINC-SAC asked next.
“On the order of two hundred thousand initial dead. Add fifty more to that from delayed effects.”
President Fowler recoiled backwards as though slapped across the face. For the past five minutes, he had denied as much as he could. This most important of denials had just vanished. Two hundred thousand people dead. His citizens, the people he'd sworn to preserve, protect, and defend.
“What else?” his voice asked.
“I didn't catch that,” Borstein said.
Fowler took a deep breath and spoke again. “What else do you have?”
“Sir, our impression here is that the yield is awfully high for a terrorist device.”
“I'd have to concur in that,” CINC-SAC said. “An IND — an improvised nuclear device, that is, what we'd expect from unsophisticated terrorists — should not be much more than twenty-KT. This sounds like a multi-stage weapon.”