DAVOS, Switzerland — It may be tempting fate to try to gather 60 heads of state and hundreds of global business leaders in the dead of winter in a Swiss mountain valley. This year, the World Economic Forum’s luck seems to have run out.
Fat, damp snowflakes have been tumbling down for the past six days, burying the town in six feet of snow, three feet of it in the last two days alone. Snow was still falling fast on Monday night, and the steep, pine-dotted slopes were so heavily laden that some neighborhoods here in Davos had to be evacuated for fear of avalanches.

BARCELONA — Trade unions in Catalonia led a general strike Tuesday that closed down businesses and led to highway blockages in protest against police...