Mr. Trump made questioning the virtues of Nafta a centerpiece of his campaign, at one point calling it “the worst trade deal maybe ever signed anywhere,”

Venezuela is in crisis and a new round of electricity measures will only deepen it. President Nicolas Maduro announced that, for the next 40 days, almost all of Venezuela will go without electricity for up to four hours a day.

Can leaders at Davos solve these interconnected risks?

First functional magnetic resonance images of people's brains while on LSD help to explain the phenomenon known as 'ego dissolution.'