The report was yet another piece in the puzzle for the former intelligence officer. No local mining operation used Octol. It was too expensive, and simple nitrate-based explosive gels were all that commercial applications required. If you needed a larger explosive punch to loosen rocks, you simply drilled a wider hole and crammed in more explosives. The same option did not exist, however, for military forces. The size of an artillery shell was limited by the diameter of the gun barrel, and the size of a bomb was limited by the aerodynamic drag it imposed on the aircraft that carried it. Therefore, military organizations were always looking for more powerful explosives to get better performance from their size-limited weapons. Cortez lifted a reference book from his library shelf and confirmed the fact that Octol was almost exclusively a military explosive... and was used as a triggering agent for nuclear devices. That evoked a short bark of a laugh.
It also explained a few things. His initial reaction to the explosion was that a ton of dynamite had been used. The same result could be explained by less than five hundred kilos of this Octol. He pulled out another reference book and learned that the actual explosive weight in a two-thousand-pound bomb was under one thousand pounds.
But why were there no fragments? More than half the weight of a bomb was in the steel case. Cortez set that aside for the moment.
An aircraft bomb explained much. He remembered his training in Cuba, when North Vietnamese officers had briefed his class on "smart-bombs" that had been the bane of their country's bridges and electrical generating plants during the brief but violent Linebacker-II bombing campaign in 1972. After years of costly failures, the American fighter-bombers had destroyed scores of heavily defended targets in a matter of days, using their new precision-guided munitions.
If targeted on a truck, such a bomb would give every appearance of a car bomb, wouldn't it?
But why were there no fragments? He reread the lab report. There had also been cellulose residue which the lab tech explained away as the cardboard containers in which the explosives had been packed.
Cellulose? That meant paper or wood fibers, didn't it? Make a bomb out of paper? Cortez lifted one of his reference books -
Cortez leaned back in his chair and lit a cigarette to congratulate himself - and the
Now he had the "How." Next he had to figure out the "What For." But of course! There had been that American newspaper story about a possible gang war. There had been fourteen senior Cartel lords. Now there were ten. The Americans would try to reduce that number further by... what? Might they assume that the single bombing incident would ignite a savage war of infighting? No, Cortez decided. One such incident wasn't enough. Two might be, but not one.
So the Americans had commando teams prowling the mountains south of Medell n, had dropped one bomb, and were doing something else to curtail the drug flights. That became clear as well. They were shooting the airplanes down, of course. They had people watching airfields and forwarding their intelligence information elsewhere for action. It was a fully integrated operation. The most incredible thing of all was that it was actually working. The Americans had decided to do something that worked. Now,
F lix rose from his desk and walked over to his office bar. This called for serious contemplation, and that meant a good brandy. He poured a triple portion into a balloon glass, swirling it around, letting his hand warm the liquid so that the aromatic vapors would caress his senses even before he took the first sip.