Word: tracer
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...offices, the snack bar. Some were driving embassy cars around and around in almost a maniacal frenzy. On the other side of the walls, crowds were shouting chants against the U.S., celebrating the imminent victory of the communists. In the distance, our jets were still flying cover, chased by tracer rounds." From the air, "I could see the DAO [defense attache office] headquarters [at Tan Son Nhut] burning in the distance. Yet the city itself had this unearthly calm. It was pitch black. No movement, no light, no sense of what was coming...
...seize Saigon, not to kill people. We didn't want to stop the evacuation." In fact, Nguyen Huu Hanh, who had come out of retirement as an ARVN brigadier general to join Big Minh's government, says "it was our troops" that fired at least some of the tracer bullets so prominent in accounts of the helicopter flights the previous night. "They were angry at the U.S. for leaving...
...experimental technique has proved to be 90% effective in identifying malignancies in women who have breast cancer. Called scintimammography, the procedure involves injecting a radioactive tracer into the blood, and researchers say it might reduce the need for biopsies...
Then, in 1957, Harvard Medical School and Beth Israel Hospital researchers studied the thyroid function of 21 students and seven parents at Fernald using doses of radioactive tracer high enough to cause "serious concern," according to the state task force report...
...amount and type of tracer materials used,"the draft report says, "create significant need tofollow up medical and epidemiological studies...