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Opinion, arguments & analyses from guest experts and from the editors of Scientific American

Government panel recommends fewer and later mammograms, no self-exams

Most women would do fine to hold off until age 50 for their first mammograms and skip self-exams for breast lumps altogether, according to new government recommendations released Monday that came as a surprise to many in the medical community—and women in general...

November 17, 2009 — Katherine Harmon

Hackers indicted for 12-hour ATM attack that netted $9 million

One year after pulling off one of the most audacious cyber crimes in history—a 12-hour spree during which more than 2,100 cash-dispensing machines in at least 280 cities on three continents were drained of a total of more than $9 million—a group of hackers is facing dozens of years in prison and millions of dollars in fines...

November 17, 2009 — Larry Greenemeier

The AMA eases its stance on marijuana

The Obama administration announced last month that people who buy or sell medical marijuana in the growing number of states that have decriminalized its therapeutic usage should not be targeted for arrest or prosecution by federal authorities...

November 17, 2009 — Carina Storrs

In 2012 neutrinos melt Earth's core, and other disasters

During an early screening of Roland Emmerich's latest disaster flick 2012, which opens today, laughter erupted in the audience near the end of the film thanks to corny dialogue and maudlin scenes (among the biggest guffaw getters: a father tries to reconnect with his estranged son on the telephone, only to have the son's house destroyed just before he could say anything)...

November 13, 2009 — Philip Yam

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