High-tech devices can help or hinder the shot.
NBC News anchor Brian Williams has apologized for telling a story that wasn't true. But psychologists have suggested it may not be a lie.
The United States and its Arab allies early Tuesday launched bombing raids against Islamic State militants in Syria, opening up a new front in the battle against the jihadist group after more than a month of US air strikes in Iraq.
Five months after the abduction of nearly 300 schoolgirls in Nigeria, the prospects for their safe return seem more remote than ever. Here's why. Continue reading →
U.S. Africa Command will set up a headquarters in the Sierra Leone capital Monrovia to act as a command and control center for U.S. military and international relief programs.
Constant troop training can also rattle rivals.
Gunman complained about symptoms relating to post traumatic stress disorder, but experts say combat not always to blame.
A soldier with mental health issues killed three people and wounded 16 before turning the gun on himself.
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