The mayor of America's largest city was one of the last major candidates to enter the race, but his progressive pitch never caught on in the crowded field.

"Podunk" is supposed to be bleak and isolated. But there are a few things that people who use the term might not know. For one, it really exists. For another, its history predates the United States.

The gun-maker says it will concentrate instead on fulfilling contracts from the military and law enforcement for the semi-automatic weapon that has come for many to be associated with mass shootings.

Day after day, researchers are immersed in the propaganda of ISIS and neo-Nazi factions. But there's almost no discussion of the mental toll of examining the world's most dangerous extremists.