| 31. | But the ravines that cut through wealthy neighborhoods are clotted with shantytowns.
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| 32. | Mudslides in hillside shantytowns kill dozens of Brazilians every year.
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| 33. | Agarwal said the shantytown was full of illegally-strung electrical wires.
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| 34. | Authorities do little to prevent the shantytowns from being built.
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| 35. | It was not clear how much damage was done to the shantytowns.
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| 36. | Shantytowns jam the hillsides around the capital and in ravines.
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| 37. | Elite police units were sent to key shantytowns controlled by drug gangs.
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| 38. | They could be back in the shantytown within minutes, witnesses said.
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| 39. | Police on Saturday afternoon continued to occupy the troubled shantytown.
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| 40. | Most Rio shantytowns are controlled by heavily armed drug gangs.
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