Given the persistent risk of terrorist attacks and large-scale accidents, it's more critical than ever for EMTs, police, firefighters and others to learn from the past.
Anti-terrorism policy is too often adopted based on very small sets of data – and fear.
New ways of expressing discontent are constantly emerging. Could mass shootings join what sociologist Charles Tilly has dubbed the 'repertoire of contention'?
Even after 26 children and teachers were killed four years ago today at Sandy Hook, more mass shootings by disturbed white men and boys have occurred. Ignoring this crisis has severe consequences.
New study finds potential cause of Breivik's crimes.
Lone offender – sometimes called "lone wolf" – attacks may become a more prevalent threat. What can we understand about them and the people who carry them out?
The National Incident Management System (NIMS), created after 9/11, has helped government agencies respond to large-scale emergencies, including mass shootings and the Boston Marathon bombing.
Telltale signs can identify people at risk of committing extreme violence.
Whenever firearm control is raised, the gun lobby turns to the US Constitution.
The court order to Apple is consistent with the existing law and previous Supreme Court decisions.
Though the perpetrators of the mass shooting in California appear to have acquired their guns legally, the vast majority used in violent crimes are obtained illegally.
America’s gun violence problem actually is producing policy reform. It's just that most of this activity is happening on the state level and has received little attention in the national media.
Finding solutions for what happened in San Bernardino is a challenge, but ensuring gunmakers behave responsibly should be one piece of the puzzle.
Research on background checks for gun purchases suggests there is an increase in gun acquisition a few months after a mass shooting happens.
Why is there always a man behind the trigger? And why is it almost always a young man?
The media repeatedly creates instant profiles of public shooters as shy, troubled loners, perpetuating the sense of helplessness over mass killings.
President Barack Obama has praised gun laws in Australia and the UK. How did they work?
Barack Obama has challenged the US media on gun laws, but despite the First Amendment, journalists are too scared to speak against abuse of the Second Amendment.
New research suggests mass shootings are not just due to gun ownership, but gun culture.
Other 'advanced nations' make it far harder for someone like the Charleston killer to get his hands on a Glock semiautomatic handgun or any other kind of firearm.