After a 15-day overland journey during which she feared a heart attack from the high altitude, Venezuelan hairdresser Giovaneska Escobar finally reached Chile, the country where she hoped to rebuild her life with her two young children.

Four years later, the 37-year-old says she feels threatened again.

Unable to get her papers to live legally in Chile, she faces a political

Whoever wins the November 16 presidential election is expected to tighten measures against undocumented foreigners.

Security has become voters' top concern, according to opinion polls. And a majority of Chileans link rising crime to irregular migration.

The issues dominate the campaign, which has thrown up a range of extreme proposals -- from mass expulsions, to building a border wall, to laying mines along the fr

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