A pregnant Guatemalan woman who has tried to cross the Sonoran Desert
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Emergency rescue with US border patrol

5 November 2012 Last updated at 01:25 GMT

´╗┐Every year, thousands of young people risk their lives attempting to cross the border from Mexico to secure a better life in America. The five day trek across the deadly wilderness of the Sonoran Desert exposes them to ferocious temperatures and rattlesnakes.

Presenter Stacey Dooley travels with the US border patrol and witnesses a rescue in the desert of a young Guatemalan woman who is seven months pregnant.

Find out more in Stacey Dooley in the USA: Border Wars on Monday 5 November at 21:00 GMT on BBC Three.