Human rights issues shade Obama's visits to Cuba and Argentina. Plus: Colombia faces peace deadline; Venezuela goes on a long holiday; and more.

A quick guide to the drama shaking Brasilia.

AQ's editor-in-chief talks with the ratings agency's chief analyst for Brazil on what the country's fast-moving crisis will mean for its economy.

A party with no clear ideology and corruption issues of its own will determine the president’s impeachment, and may soon rule Brazil.

Months before the 2016 Games, the Vila Autódromo favela is a flashpoint for anger with Rio Olympics development.

The director of one of the largest Brazilian media groups says the country needs a new constitution.