Brain chemistry, previous training and pack mentality likely led to the heroic restraining of a terrorist by five men on a French train.
The men who took down a heavily armed attacker on a French train were awarded France's highest honor.
Hunkered down in his Pakistani compound, Osama bin Laden pleaded with his followers to stay focused on attacking the United States.
Smaller terrorist groups are tougher to stop, but they also tend to cause less damage.
Solo-working experts and secrecy are a recipe for disaster, experts warn, when it comes to hunting terrorists.
Before and after satellite maps show Boko Haram's horrific campaign of terror.
Hundreds of thousands of people joined by world leaders flooded Paris on Sunday in a historic show of defiance and solidarity against terrorism following this week's Islamist attacks in the French capital.
Genes primarily affecting males, as well as family environment help explain why so many terrorists and killers are men, including brothers.
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