His threats against North Korea expose the many dangers of the White House's post-9/11 powers. Here's what Congress must do.

Will Trump's bluster spark a war with Iran?

The class responsible for the lucrative rush to war can literally buy its way out of annihilation, thanks to the boom in luxury bunkers.

In an era of extremist government, there may be something to be learned from an extreme devotion to political beliefs.

A leading arms control expert assesses the true risks of placing Trump in charge of the U.S. nuclear arsenal.

The old Cold War rivals could team up against emerging powers.

The election is in a week, and the Republican nominee's policies have never been clearer—or more frightening.

Negotiations and sanctions haven't stopped the country from being a menace and human rights abuser.