Word: scans
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...much, so the four e-mail giants have started to employ a new weapon: humans. People, it seems, learn the rules of this new battlefield faster than machines do. At AOL's new control facility in Gainesville, Va., home to its antispam special-forces unit, workers like Anna Ford scan screens that show blocks of mail entering the system. She's looking, Matrix-like, for suspicious patterns. "Here's someone sending 50 e-mails to 3,000 recipients," says Ford. "That stinks." With one click, the sender is identified as a China-based spammer; with another, he is banished from...
...least not formally. Some Pentagon officials, using rough accounts from the field, privately estimate that more than 10,000 Iraqi troops and up to 2,000 civilians have died so far. Approximations are possible after ground engagements, when coalition forces may make a quick battlefield walk-through to scan for the dead. Tallying destroyed vehicles and multiplying by the number of personnel it takes to operate each can also provide a crude estimate...
...sentry about 10 men sweeping around for an ambush. On his command, the Americans run north through the choking red dust and throw themselves on the ground against a nearby railway track. "Jesus, we can't see s___!" says Carnahan. The squads hold their positions as the bradleys scan the area with thermal imagers. Nothing. Carnahan then gets a call from brigade. "We have a new mission," he announces to his men. "We're pulling out and moving back east to another checkpoint." Pause. "Dammit. Pull back again...
...good. But the scan also spots a lot of things that are not lung cancer. "In up to half of patients screened, the scan will show some lung scar or shadow that will require further evaluation or surgical biopsy, even though it will ultimately be deemed to be harmless," says Dr. Peter Bach of Memorial Sloan-Kettering. The best candidates for the scan, therefore, are those who already have the highest risk--and the most to gain...
...course, no model, no matter how sophisticated, is foolproof. And this one won't tell you who should get a lung scan. That's something smokers and ex-smokers should decide with their doctors. And if you need any more reasons to quit, consider this: in some ways, a little smoking may be as bad as a lot. Researchers looking at the lining of blood vessels were surprised to find the same damage whether the subjects smoked a pack a day or a pack a week. When it comes to smoking, the odds are always against...