Threats

Greenland Is Falling Apart

Its ice sheet, which holds enough water to raise sea level by 25 feet, may now be melting from the bottom.

Threats

Despite Threatening It, Trump Is Keeping the Military Out of Venezuela

The administration is sticking to an approach that it has favored against adversaries from Iran to North Korea: gradual economic strangulation.

Threats

What Will Climate Change Mean for Security in Africa?

The Pentagon faces different challenges in a continent where it has only one permanent base — but lots of troops.

Threats

One in Five TSA Screeners Quits Within Six Months

TSA administrator says low pay is to blame and promises new compensation system soon.