剧情介绍
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National Geographic goes inside the US-Mexico border with unprecedented access to the growing arsenal of high tech cameras, ground radar, and skilled trackers who are faced with the challenge of controlling the desert every day.
庆幸自己生在中国,祖国越来越强大。不用如蝼蚁一般苟且的活着。
赌上性命的非法移民