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...said all tapes by the two terrorists are "a matter that's taken very seriously, and their appearance causes concern." But the official stressed that the tapes could be interpreted several different ways. For his part, Scheuer concedes that he has no idea where or when an attack might occur. "I've been wrong too often trying to predict dates," he says. --By Timothy J. Burger
...code-red scrutiny that now accompanies the A.F.P. and its boss was played out dramatically in March, after the Madrid commuter-train bombings. Keelty was asked during a TV interview whether a similar attack could occur in Australia. "The reality is," he replied, using a trademark phrase, "if this turns out to be Islamic extremists responsible for this bombing in Spain, it is more likely to be linked to the position that Spain and other allies took on issues such as Iraq." Prime Minister John Howard disagreed, dismissed any link between Spain and Australia, and maintained that Australia...
...Keelty believes a terrorist strike on Australian soil is all but inevitable. "The only reason why I say it's more likely to occur than not is there's nothing in this country that makes us immune from terrorist attack," he says. "We have to be vigilant, and until this point in time we have been ? The problem we are dealing with is how do you fight an idea? How do you counterbalance a philosophy that uses religious following to advance its views? It's very difficult." A first domestic step, he says, is interfaith dialogue and reaching...
...scanners that provide images in real time, he and his colleagues have shown that the brain's ability to use glucose drops off dramatically after being awake 24 hours, indicating a decrease in brain activity--despite the fact that there's still plenty of glucose available. The biggest drops occur in exactly those areas of the cortex that anticipate and integrate emotion and reason. After 24 hours, however, the drop-off stabilizes. "But performance doesn't level off," Belenky notes. "It continues to tank." Why? No one knows...
...Physical dependence can occur in three days," says Roland Griffiths, a professor of psychiatry and neuroscience at Johns Hopkins University School of Medicine. "Habituation to some of the [stimulating] effects may happen even more rapidly." What passes for a lift, Griffiths warns, may be nothing more than relief from the symptoms of caffeine withdrawal--such as lethargy and headache--which begin after overnight abstinence. The discomfort is probably caused by adenosine-starved brain receptors overreacting when the caffeine is removed and the brain chemical starts flowing again...