Seems your idea has already been thought of. I'm sure some labor in the fields can be worked into this program.
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Homeland Security Contracts for Vast New Detention Camps
News Analysis/Commentary, Peter Dale Scott,
New America Media, Feb 08, 2006

Editor's Note: A little-known $385 million contract for Halliburton subsidiary KBR to build detention facilities for "an emergency influx of immigrants" is another step down the Bush administration's road toward martial law, the writer says.

BERKELEY, Calif.--A Halliburton subsidiary has just received a $385 million contract from the Department of Homeland Security to provide "temporary detention and processing capabilities.....
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For rest of article:
http://news.pacificnews.org/news/view_article.html?article_id=eed74d9d44c30493706fe03f4c9b3a77

Well, thank God they have a plan ...