most of ththe people livivingn these shacacks have no a accs o electricity and runninwawater.n t the oer sidide the mountain, a well-to-do neighborhood with sports facilities and luxury villas. two worlds separated by a ten-kilometer long wall made of concncrete and topped with bard wire. sara torres lives on the poor side. pamplona alta is situated in the outskirts of the peruvian capital, lima. the population is increasing rapidly, as more people arrive from the countryside to try their luck in the big city. sara has lived here for 17 years. during that time, both the wall and the contrast between the two sidedes have got b bigger. sara: it m makes peoplee aggressive. this kind of situation shouldn't exist today. it's a form of discrimination. other people might see it differently. but for me, it's a clear separation of the poor on one side, and the rich on the other. reporter: sara runs an eatery in her neighborhood. she offers good food at a good price, something her customers appreciate. the 49-year-old earns just enough to get by. she serves meals from early morning to e