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Gingrich, Romney keep debate civil

GOP front-runners Mitt Romney and Newt Gingrich were the focus of much of the attention heading into the final debate before the Iowa caucuses.

State’s employment picture brightens

The Massachusetts unemployment rate fell to 7 percent in November, its lowest level in nearly three years, as employers added jobs for the second consecutive month.

School abuse fears not reported

The principal of a Dorchester school never told state authorities about a teacher aide’s inappropriate contact with a student, school officials said.

A formal end to nine years of war

The U.S. military officially declared an end to its mission in Iraq yesterday even as violence continues to plague the country and the Muslim world remains distrustful of U.S. power. In a fortified concrete courtyard at the airport in Baghdad, Defense Secretary Leon E. Panetta thanked the more than 1 million U.S. service members who have served in Iraq for “the remarkable progress’’ made over the past nine years but acknowledged the severe challenges that face the struggling democracy.

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for Health and Science - 16brothers - (Right to left): Brothers David Reshef and Yakir Reshef developed MIC under the guidance of professors from Harvard University and the Broad Institute. (ChieYu Lin)

Brothers create computer data sifter

Yakir and David Reshef, both Boston college students, created a powerful tool to rapidly flag patterns and identify correlations in huge databases.