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Speaking anonymously for fear of retribution, the school's headteacher welcomed their arrival in her classrooms, recounting how her pupils used to have to take shelter under their desks when gun battles erupted outside.
One of the unit's first tasks upon being deployed to the district last month was to remove the corpse of a man shot 12 times in the head, but Col Raudales said there had been no deaths there since their deployment.
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But amid this familiar school tableau in a hillside slum overlooking the Honduran capital of Tegucigalpa, there is a new and jarring sight.
And that is of soldiers, armed with assault rifles, strolling around the school grounds.
Radar's ability to penetrate clouds and make 3-D measurements allowed scientists to generate the first complete high-resolution topographic map of the entire region.
It is a sign of desperate times in Honduras, the most dangerous country on the planet outside a full-fledged war zone.
The murder rate reached an unenviable global high of 85 for every 100,000 residents last year, and is on course to reach 90 per 100,000 in 2013.
The question of how to tackle this epidemic of gang and drug violence, which exploded after Honduras became the key staging post for cocaine smuggling from South America to the US, is the overwhelming issue facing the candidates in next Sunday's presidential elections.
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