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The federal government has ruled that an American soldier who has been living in Toronto because she didn't want to serve in Iraq must return to the U.S.

A large section of the roof was blown off the top of Montreal's Maurice Richard Arena Thursday by powerful winds. Part of the roof, about the size of a couple of school buses, tumbled down the side of an exterior wall onto some trees.

A former security guard at a U.S. consulate in China pleaded guilty on Thursday to trying to pass details on the new building's security systems to a Chinese spy agency, prosecutors said.

A NATO helicopter crashed in southern Afghanistan on Thursday, killing two Australian troops, officials said, bringing that country's military fatalities to five in less than 24 hours.

Harvard University is investigating allegations that about 125 undergraduate students cheated on a spring takehome final exam, school officials said on Thursday, disclosing what would be the largest cheating scandal in its recent history.

Twin satellites rocketed into orbit Thursday on a quest to explore Earth's treacherous radiation belts and protect the planet from solar outbursts. NASA launched the science probes before dawn, sending them skyward aboard an unmanned rocket.

Three more NATO soldiers were killed Wednesday in what is fast becoming an epidemic of Afghan soldiers - sometimes insurgents in disguise - murdering their western mentors. So far, 45 NATO troops have died this year in "green-on-blue" shootings.

Paul Ryan wowed the Republican National Convention on Wednesday with a passionate, occasionally snide and often funny speech to delegates after accepting the party's nomination as Mitt Romney's running mate.

Dozens rescued in southern Louisiana

Sounding more Hollywood caper than Animal Planet, the saga of Hercules the kidnapped squirrel monkey included a risky heist, an anonymous phone call and a secret exchange on a New Brunswick country road on Wednesday.