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In taking sides for or against a theory, scientists place their faith on an idea. Commentator Marcelo Gleiser asks what happens when the idea can't be tested or validated. Is it still science?

Lorenzo Dorr wants to keep Ebola at bay in remote parts of the country. "We should be prepared before a case is identified," he says, "not chasing after it after hell breaks loose."

Theodore Wafer was convicted of second-degree murder after he shot and killed an unarmed teenager on his front porch. The case drew national attention because of its racial overtones.

Obama said NATO and the democratic values the alliance stands for are facing "a moment of testing," with Russia's military involvement in Ukraine. Ultimately, however, Obama said "Democracy will win."

A gay group will be able to march under its own banner for the first time in the world's largest St. Patrick's Day Parade. The parade lost sponsors and supporters this year because of the ban.

The Minneapolis Police Department is replenishing its ranks after losing several dozen veteran officers to retirement this year. The department is not as racially diverse as the city as a whole.

The crisis in Ukraine is exactly the type of confrontation that NATO wanted to preempt by expanding eastward over the past two decades. Yet Russia still views NATO as a threat.

They were angry about the treatment center. They didn't all believe the virus was real. But after protests, violence and a quarantine, many residents of West Point are no longer Ebola doubters.

The cause was mantle cell lymphoma, his lawyer said. He and his brother, Mark, turned their father in to authorities in 2008 upon learning of his Ponzi scheme. Mark Madoff killed himself in 2010.

Federal banking regulators vote Wednesday on new rules that will require banks to increase their holdings of highly liquid assets. The new rules stem directly from problems experienced during the financial crisis, when banks found they couldn't quickly convert assets into cash.