The Brazilian cities, which far outrank any US cities on Mercer's annual list, have climbed the ranks due to high taxes and a booming Brazilian economy.
Guest blogger Miguel Octavio thinks Monday's presidential primary in Venezuela, held by a united opposition seeking a single candidate to beat Hugo Chávez, bodes well for democracy in the country.
The arrest of a suspected Russian mafioso in Ecuador highlights the increasing presence in the country of international organized crime, says guest blogger Elyssa Pachico.
But while the captured crime boss's announcement is sure to fuel the debate over gun control in the US, there is reason to view it with skepticism.
The latest in the Mexican government’s series of 'myth-busting' videos challenges the idea that authorities aren't doing enough to hunt down Joaquin Guzman, leader of the Sinaloa Cartel.
The Congressional subcommittee hearing Thursday on Hezbollah's presence in Latin America distracts from other, bigger regional threats, warns guest blogger James Bosworth.
The arrest of Jesus Enrique Rejon Aguilar follows a series of recent drug-war gains by Mexico's government.
Recent reports suggest that assaults on US officials on the Mexico border may have tripled since 2004, but a look at these 'attacks' shows that the danger they pose may be exaggerated.
Critics said Sandra Torres' divorce from President Colom was a scam to dodge a ban on relatives running for office. Her party promises to appeal, but the candidates' list is due July 11.
Brazil’s Science and Technology Minister, Aloizio Mercadante, has called on the nation's most talented hackers to help understand how it was vulnerable to the recent LulzSec attack.
Our correspondent recalls the evolution of the US-Mexico divide at Nogales, from a simple chain-link fence to a virtual fortress boosted by electronic surveillance.