Word: hard-to-detect
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...invulnerable to pre-emptive strikes, and on aircraft (including perhaps a new supersonic bomber), which can scramble quickly the moment that the U.S. appears to be under attack. Because of improvements in satellite-guidance systems for submarine-launched ballistic missiles and in the technology of slow, low-flying, hard-to-detect and exceedingly accurate cruise missiles, the U.S. is approaching the point where it need not rely quite so much on its land-based missiles in order to maintain a credible deterrent...
...computer studies of such chance phenomena as incidence of telephone usage, highway traffic patterns and even the lineup of shoppers in a supermarket. Dutka claims, however, that a naturally occurring random number, like the square root of 2, is better for those studies because there may be subtle, hard-to-detect biases in random numbers that are artificially generated...
...their latest findings, Drs. Sandlow and Necheles report equal accuracy in other hard-to-detect forms of cancer. The test was positive and accurate in seven out of seven cases of cancer of the pancreas, in 12 out of 12 who had cancer involving the pleura (the lining of the chest cavity), and in 12 more with cancer of the abdominal cavity...
...occur to John X that he was emotionally ill. It was his stomach, he said. A battery of doctors found nothing wrong there. Then John X "knew" the worst: he was going to die soon, probably from one of those hard-to-detect cancers of the stomach. Forced to give up some meetings, he spent the evenings at home talking to his wife about his life insurance. He slept poorly and lost weight. He gave up hope. Late one night the tension in his mind became so great that John X threatened to end his life, but his wife talked...