Nuclear war and race relations weren't the usual kiddie-show fodder, but they made their way into the safe space of 'Mister Rogers' Neighborhood.'

New CIA head Gina Haspel comes from a small, but proud cadre of high-ranking female intelligence officers. Declassified documents reveal the agency's long struggle with women as agents.

Many countries classify powerful opioids like carfentanil as chemical weapons.

Blue clouds of poisonous gas. Relentless shelling and machine-gun fire. Horace Pippin's journals recorded life in ‘them lonely, cooty, muddy trenches.'

The holiday did not officially become Memorial Day until nearly a century after it began.

The experiment of a 'continuous week' was shift work, on a colossal scale. And it failed.

Sound has been wielded as a weapon for thousands of years to disrupt, confuse and even injure.

From adulterous affairs yielding secret children to hotel break-ins and secret gun deals, scandal has always followed American politicians.

The Mann Act was designed to prevent human trafficking—but used to punish interracial relationships.

Scientists are using the legend to draw attention to their research project. And why not?