Guns for sale. Photo by Mike Fritz/PBS NewsHour. Even as a government spending crisis nears, President Obama and Vice President Biden have been working steadily on gun control measures, both in public and private. The president's newly revamped campaign arm,…

What combination of circumstances compels a human being to commit the most inhuman of crimes? Can science in any way help to understand these horrific events and provide any clues on how to prevent them in the future?…

How do you make sense of a seemingly senseless act of violence? How do you help the country begin to process the trauma of 20 small children shot dead in their classroom? In the wake of the mass killings…

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