and makes a noise. The guard shoots. The lieutenant in charge comes around. What’s the guard going to say— that it was only a rabbit? No. “Somebody’s been trying to get into Building Omega and I scared him off!”
So de Hoffman was pale and shaking, and he didn’t realize there was a flaw in his logic: it was not clear that the same guy who’d been trying to get into Building Omega was the same guy who was standing next to him.
He asked me what to do.
“Well, see if any documents are missing.”
“It looks all right,” he said. “I don’t see any missing.”
I tried to steer him to the filing cabinet I took my document out of. “Well, uh, if all the combinations are the same, perhaps he’s taken something from another drawer.”
“Right!” he said, and he went back into his office and opened the first filing cabinet and found the second note I wrote: “This one was no harder than the other one—Wise Guy.”
By that time it didn’t make any difference whether it was “Same Guy” or “Wise Guy”: It was completely clear to him that it was the guy who was trying to get into Building Omega. So to convince him to open the filing cabinet with my first note in it was particularly difficult, and I don’t remember how I talked him into it.
He started to open it, so I began to walk down the hall, because I was a little bit afraid that when he found out who did it to him, I was going to get my throat cut!
Sure enough, he came running down the hall after me, but instead of being angry, he practically put his arms around me because he was so completely relieved that this terrible burden of the atomic secrets being stolen was only me doing mischief.
A few days later de Hoffman told me that he needed something from Kerst’s safe. Donald Kerst had gone back to Illinois and was hard to reach. “If you can open all
By now the story had gotten around, so several people came to watch this fantastic process where I was going to open Kerst’s safe—cold. There was no need for me to be alone. I didn’t have the last two numbers to Kerst’s safe, and to use the psychology method I needed people around who knew Kerst.
We all went over to Kerst’s office and I checked the drawers for clues; there was nothing. Then I asked them, “What kind of a combination would Kerst use—a mathematical constant?”
“Oh, no!” de Hoffman said. “Kerst would do something very simple.”
I tried 10-20-30, 20-40-60, 60-40-20, 30-20-10. Nothing.
Then I said, “Do you think he would use a date?”
“Yeah!” they said. “He’s just the kind of guy to use a date.”
We tried various dates: 8-6-45, when the bomb went off; 86-19-45; this date; that date; when the project started. Nothing worked.
By this time most of the people had drifted off. They didn’t have the patience to watch me do this, but the only way to solve such a thing is patience!
Then I decided to try everything from around 1900 until now. That sounds like a lot, but it’s not: the first number is a month, one through twelve, and I can try that using only three numbers: ten, five, and zero. The second number is a day, from one to thirty-one, which I can try with six numbers. The third number is the year, which was only forty-seven numbers at that time, which I could try with nine numbers. So the 8000 combinations had been reduced to 162, something I could try in fifteen or twenty minutes.
Unfortunately I started with the high end of the numbers for the months, because when I finally opened it, the combination was 0-5-35.
I turned to de Hoffman. “What happened to Kerst around January 5, 1935?”
“His daughter was born in 1936,” de Hoffman said. “It must be her birthday.”
Now I had opened two safes cold. I was getting good. Now I was professional.
That same summer after the war, the guy from the property section was trying to take back some of the things the government had bought, to sell again as surplus. One of the things was a Captain’s safe. We all knew about this safe. The Captain, when he arrived during the war, decided that the filing cabinets weren’t safe enough for the secrets he was going to get, so he had to have a special safe.
The Captain’s office was on the second floor of one of the flimsy wooden buildings that we all had our offices in, and the safe he ordered was a heavy steel safe. The workmen had to put down platforms of wood and use special jacks to get it up the steps. Since there wasn’t much amusement, we all watched this big safe being moved up to his office with great effort, and we all made jokes about what kind of secrets he was going to keep in there. Some fella said we oughta put our stuff in his safe, and let him put his stuff in ours. So everyone knew about this safe.
The property section man wanted it for surplus, but first it had to be emptied, and the only people who knew the combination were the Captain, who was in Bikini, and Alvarez, who’d forgotten it. The man asked me to open it.
I went up to his old office and said to the secretary, “Why don’t you phone the Captain and ask him the combination?”
“I don’t want to bother him,” she said.
“Well, you’re gonna bother
“OK, OK!” she said. She picked up the telephone and I went into the other room to look at the safe. There it was, that huge, steel safe, and its doors were wide open.
I went back to the secretary. “It’s open.”
“Marvelous!” she said, as she put down the phone.
“No,” I said, “it was
“Oh! I guess the property section was able to open it after all.”
I went down to the man in the property section. “I went up to the safe and it was already open.”
“Oh, yeah,” he said; “I’m sorry I didn’t tell you. I sent our regular locksmith up there to drill it, but before he drilled it he tried to open it, and he opened it.”
So! First information: Los Alamos now has a regular locksmith. Second information: This man knows how to drill safes, something I know nothing about. Third information: He can open a safe cold—in a few minutes. This is a
I found out he was a locksmith they had hired after the war (when they weren’t as concerned about security) to take care of such things. It turned out that he didn’t have enough work to do opening safes, so he also repaired the Marchant calculators we had used. During the war I repaired those things all the time—so I had a way to meet him.
Now I have never been surreptitious or tricky about meeting somebody; I just go right up and introduce myself. But in this case it was so important to meet this man, and I knew that before he would tell me any of his secrets on how to open safes, I would have to prove myself.
I found out where his room was—in the basement of the theoretical physics section, where I worked—and I knew he worked in the evening, when the machines weren’t being used. So, at first I would walk past his door on my way to my office in the evening. That’s all; I’d just walk past.
A few nights later, just a “Hi.” After a while, when he saw it was the same guy walking past, he’d say “Hi,” or “Good evening.”
A few weeks of this slow process and I see he’s working on the Marchant calculators. I say nothing about them; it isn’t time yet.
We gradually say a little more: “Hi! I see you’re working pretty hard!”
“Yeah, pretty hard”—that kind of stuff.
Finally, a breakthrough: he invites me for soup. It’s going very good now. Every evening we have soup together. Now I begin to talk a little bit about the adding machines, and he tells me he has a problem. He’s been trying to put a succession of spring-loaded wheels back onto a shaft, and he doesn’t have the right tool, or something; he’s been working on it for a week. I tell him that I used to work on those machines during the war, and “I’ll tell you what: you just leave the machine out tonight, and I’ll have a look at it tomorrow.”
