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According to U.S. Customs and Border Protection, approximately 50,000 people not eligible for admission into the United States try to penetrate our southwestern border each month, and those are just the ones of which CBP is aware. The vast majority of these people are either children or adults with skills not well suited to a first world economy and thus will either be dependent on the welfare state or will depress the opportunities and wages available to lower skilled people who are legally present in the United States. So, not only can we not sustain this level of illegal immigration, it is out duty to protect those legally here from its adverse consequences.