A concession by Brazilian authorities isn't enough to end protests.
There has been a sharp increase in violence against environmental activists around the world, according to a new report from Global Witness. Brazil and Cambodia are among the countries worst affected by the problem.
A planned bus fare increase in Rio de Janiero has led to clashes between police and protestors, who also complained about Brazil's World Cup spending. Seven people were hurt, including a cameraman.
Smashed shopfronts, burning buses, injured protesters and the death of a cameraman - an ugly escalation of violence threatens to relegate Brazil's protest movement to a position from which it is unlikely to recover.
Fifty years after the coup, Brazilians are finally coming to terms with the abuses of two decades of military rule. But it's been difficult in a country that has chosen to put the past behind it.
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