Election fraud allegations have prompted President Evo Morales to resign with no clear successor, plunging Bolivia into political uncertainty.

Tear gas is banned in international warfare, and its health risks are well-documented. Still, it remains a crowd-control agent of choice for police worldwide.

The coronavirus is delivering yet another heavy blow to natural disaster–prone Puerto Rico, threatening to deepen the U.S. territory’s economic and social crisis.

A group of international health experts found in 2019 that the world wasn’t ready for a pandemic. This year’s coronavirus outbreak has shown they were right.