Rio de Janeiro's police and firefighters have gone on strike one week before Carnival starts. Now fears have been raised that there will be increased violence so close to the major event, which draws tourists from around the world. Last week, police in Salvador—another popular Carnival destination—went on strike and there was an increase in looting and murders.

Hundreds of thousands of people flock to Carnival every year, and this year will be no exception—especially since Brazil is preparing for hosting the World Cup in 2014. The strikes are now raising concern that the country will be able to provide proper security for the World Cup, as well as the 2016 Olympics.

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