Word: culprit
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Dates: during 1990-1999
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...culprit, test results show, is a tiny parasite with a big name: cryptosporidium. The oocysts (parasite versions of eggs) of this pesky protozoan can be removed only through filtration. Unlike bacteria, they are not readily killed by chlorine. Furthermore, the tests that water-purification plants routinely rely on to detect biological contaminants do not pick up the presence of cryptosporidium. What makes the parasite especially nasty, explains microbiologist Dean Cliver of the University of Wisconsin, Madison, is that the oocysts do not hatch in water -- in this case Lake Michigan water -- but remain dormant until they are swallowed by some...
...some sort of price, to attract attention to their cause." But it was by no means certain last week that the Trade Center bombing was an act of political terrorism. During the Gulf War, a bomb found on a chemical storage tank in Virginia instantly raised an alarm. The culprit turned out to be a businessman who hoped to make an insurance-fraud fire look like the work of Iraqis...
Barber: The researchers don't know. It could be that both are related to a common factor - a high level of the male hormone dihydrotestosterone is one plausible culprit. In any case, an editorial in JAMA says the correlation between baldness and heart disease is statistically sound...
...culprit, it seems, is still human industry...
...dream of environmentalists is the nightmare of producers and users of coal, which contains more carbon than any other fuel. Supporters like Vice President Al Gore praise the idea because it would cut emissions of carbon dioxide, the main culprit in global warming. "It fights the deficit and it fights pollution in a big way," says David Doniger, a senior attorney for the Natural Resources Defense Council...