Rio de Janeiro army tackles drug gangs in sprawling slum . CNN , home to 600,000 people , is also home to drug rings . General in charge says Roberto Escoto will be prepared for the Olympic Games . Rio de Janeiro ( CNN ) -- Then he is whisked away by guards who do n't let him stay in hostile territory for long .
Rio de Janeiro army tackles drug gangs in sprawling slum . CNN , home to 600,000 people , is also home to drug rings . General in charge says Roberto Escoto will be prepared for the Olympic Games . Then he is whisked away by guards who do n't let him stay in hostile territory for long .