Ongoing turmoil – including revelations linked to the Panama Papers – threatens to unseat Brazil's President Dilma Rousseff.
As Brazil's smartphone market grows, so too does connectivity. Programs like Whatsapp have been used by – and against – politicians, from networking with young voters to revealing scandals.
More than half a million prisoners in Brazil occupy jails meant to house less than 300,000 people. Brazil has a number of rules that allow it to pare down the prison population - particularly around Christmas.
Brazilians now make up 2 percent of the foreign student population in the US, on par with students from Mexico and Japan.
Rio de Janeiro's military police announced its fifth change in command in seven years. The security institution has been plagued by challenges including controlling troops during 2013 street demonstrations.
Brazilians head to the polls Sunday to vote for their next president. Marina Silva raised hopes for reform when she entered the race, but her flip-flopping on issues like gay rights has many flocking back to the ruling Worker's Party.