Today, all 184 non-nuclear weapons states under the Non-Proliferation Treaty meet the criterion to not use or threaten to use nuclear weapons against non-nuclear weapons states.
When the White House unveiled a hard-line plan last week to choke off immigration, it issued a threat to a crucial pipeline of Midwestern workers: home health care aides.
Officials in Cape Town, South Africa, say they could soon be the first major city to run out of water. Michael Tiboris cites three reasons for this crisis.
Insurgent strength may grow and shrink over time, but the Taliban are no nearer to defeat today than they were a day or a decade ago. Meanwhile, America’s longest war grinds on.
Climate change, economic inequality, and political unrest are making some of the world's fastest-growing cities dangerously unstable. But even the most fragile places are fixable.