Salmonella
as oregon's rajneeshee cult
demonstrated in 1984, it is not difficult to set off a wave of food poisonings. Indeed, gastroenteritis caused by natural contamination and careless food handling afflicts millions and results in 5,000 deaths each year. The Rajneeshees considered a number of different viruses and bacteria, including those that cause hepatitis and typhus, but decided for their purposes (disrupting the outcome of a local election) on a strain of salmonella that would be debilitating but not fatal. Salmonella poisonings tend to be localized. With proper hygiene, the bacterium is not particularly contagious.
E. coli
an even easier bug to obtain
is the familiar intestinal parasite E. coli. Naturally occurring outbreaks of E. coli, typically the result of fecal contamination in everything from hamburgers to swimming pools, sicken hundreds of thousands of Americans each year. In New York City this spring, a man was arrested after he was spotted spraying what turned out to be feces-laden water over the contents of a midtown salad bar (fortunately, no one got sick). A far more virulent strain of the bacterium called O157:H7 is sometimes fatal, but identifying and isolating the right strain is beyond the technical capabilities of most terrorists.
Foot-and-mouth disease
a terrorist attack
aimed at crops and livestock would be less dramatic but might cause more disruption in the long run. Such attempts are not unheard of. In World War II, Britain accused Germany of dropping small, cardboard bombs filled with beetle pests on English potato fields, and in the 1980s Tamil militants threatened to target Sri Lankan tea and rubber plantations with plant pathogens.
Perhaps the most worrisome threat to U.S. agriculture is foot-and-mouth disease, which can spread with astonishing speed in sheep, cattle and swine. Not seen in this country since 1929, the disease is harmless to humans but renders farm animals economically worthless. The U.S. could be forced to destroy much of its own livestock, as Great Britain had to do earlier this year.
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