It's a term that's casually thrown around in movies and novels. But what does "DEFCON" mean, and what's the significance of each of its five levels?

"He (PM Modi) spoke for about 90 minutes and lied throughout his speech. He has only two weapons, first to defame Congress ...

AptarGroup, Inc. (NYSE:ATR), a global leader in drug and consumer product dosing, dispensing and protection technologies, today reported strong fourth quarter ...