"I didn't mean to interrupt. Please continue."
"The third system is the keystone of the operation," said Sandecker. He held up a doll-like figure that resembled a mechanical polar bear with portholes in a bulbous head. "An articulated, deepwater atmospheric diving system, more commonly called a JIM suit. It is constructed of magnesium and fiberglass, and a man inside it can work at tremendous depths for hours at a time while eliminating the need for decompression. Two of these suits will enable six men to work on the wreck around the clock."
"Looks heavy and cumbersome."
"In air, with an operator inside, it weighs eleven hundred pounds. Under water, only about sixty. It's surprisingly agile. You might say it puts hiking on the seafloor in a class with hiking on the Sahara."
The President took the figure from Sandecker's offered hand and moved the tiny articulated arms and legs. "It also makes aqualung divers obsolete."
"Not entirely," answered Sandecker.
"A diver with three dimensional mobility is still the backbone of any salvage operation. The fourth and final system is called saturation diving." He gestured at a model in the form of a cylindrical tank. "A team of divers will live in this pressurized chamber while breathing a mixture of helium and oxygen. This prevents the narcotic effects of inhaling nitrogen under pressure. The chamber permits men to work underwater for long stretches of time without the danger of lung gases dissolving into the bloodstream, forming bubbles and causing the bends. Also, they don't have to decompress until the job is finished."
The President fell silent. By education and occupation he was an attorney, a precise and analytical man-and yet scientific data was beyond him. He did not wish to appear stupid in front of the admiral. He chose his words carefully.
"Surely your people don't intend to literally claw a path through an acre of steel."
"No, there is a better method."
"Like explosives perhaps?"
"Too risky." Sandecker replied matter-of-factly. "The steel in the wreck has been under attack by corrosive elements for seventy-five years. It has become porous and its tensile strength is greatly reduced. A charge in the wrong place or one too strong, and the whole ship could collapse in on itself.
No, we'll cut our way through."
"With acetylene cutting torches, then."
"With pyroxone."
"Never heard of it."
"A pliable incendiary substance that can burn under water at an incredibly high temperature for pre controlled lengths of time. Once pyroxone is molded against the surface to be separated, it is ignited by an electronic signal. At three thousand degrees Celsius it will melt any barrier in its way, including rock."
"It's hard to imagine."
"If I can answer any more questions."
The President made a disparaging gesture. "No, I'm satisfied. You and your people are doing a remarkable job."
"If we don't come up with the treaty, you'll know we did all that was technically possible."
"I gather you're not too hopeful."
"Frankly, Mr. President, I think we have about as much chance as a titmouse in a buzzard's beak."
"What are your feelings concerning the treaty on the Manhattan Limited?"
"I'll save any comment until we find the train."
"At least I know your position," the President said, smiling.
Sandecker suddenly looked wolfish. "Sir, I have a question."
"Go ahead."
"May I respectfully ask just what in hell this is all about?"
It was the President's turn to look wolfish. "You may well ask, Admiral, but all I'm going to tell you is that the scheme is crazy," he said with an ill-boding look in his eyes. "The craziest scheme ever hatched by a president of the United States.