Tens of thousands of white-clad demonstrators flooded the streets of eastern Caracas yesterday in the largest show of strength so far against President Nicholás Maduro’s rule. The arrest of opposition firebrand Leopoldo López for fomenting unrest – and the heavy-handed tactics of security forces – hasn’t snapped the momentum of the demonstrations. Instead, Venezuela's fractured opposition banded together to denounce the jailing of Mr. López and the government’s broader crackdown on dissent.

Late President Hugo Chavez used to call it “la revolucion bonita” (the pretty revolution), but the world looked at Venezuela last week and saw only ugliness. Protesters gunned down in the streets, barricades in flames, chaos. One of the dead was a 22-year-old beauty queen shot in the head. With the government censoring and cowing TV reports, many of the images came from smartphones, grainy and jerky snippets filled with smoke and shouts.

Several weeks ago, Club Deportivo Palestino, a top Chilean football team, was banned from wearing their shirt after it caused an international dispute, because the shirts depicted a map of pre-1948 Palestine in the shape of the number 1, denying any Israeli claim to the land. The cartographical choices we make are a fairly accurate barometer of an individual’s perspective. It shows how we wish to frame a debate.

Journalist Simon Shuster said it was “straight out of Hieronymus Bosch.” Writer Philip Gourevitch thought it was more like Bruegel. But the main word to describe the violent clashes in Ukraine’s capital city of Kyiv was “apocalyptic.”

Venezuela's President Nicolas Maduro has threatened to expel the US news network CNN from the country over its reporting of recent protests there. Mr Maduro said he would take action if CNN did not "rectify its coverage". Earlier, Mr Maduro said he was sending troops to the western state of Tachira, where there has been continuing unrest.

Civil strife often follows a grimly predictable pattern. What at first seems a soluble dispute hardens into conflict, as goals become more radical, bitterness accumulates and the chance to broker a compromise is lost. Such has been the awful trajectory of Ukraine, where protests that began peacefully in November have combusted in grotesque violence.

Expressing alarm at the lethal escalation of political violence in Ukraine, the European Union and the United States scrambled for a quick response Wednesday, threatening punitive sanctions against senior figures in the Ukrainian government. The Obama administration later said it had placed 20 top Ukrainian officials on a visa blacklist.

Venezuelan street demonstrations entered their second week after National Guard troops arrested opposition leader Leopoldo Lopez following protests that have left five people dead, including one today. Crowds gathered today in downtown Caracas in front of the Palace of Justice after the Voluntad Popular party called on supporters to rally behind Lopez.