Right now people and businesses in the U.S. are rather xenophobic, and rightly so. Take your Iranian in the U.S. on an H-1 visa. No experience, has the cert, but is from a country hostile to the U.S., "may" be of a religion hostile to the western way of life, and is looking for a job that has the capacity to cripple communications in this country.
Guess what? Those are the exact same things that could be said about the 9/11 terrorists. You want to hire a foreigner for router deployments, you'd better damn well examine their entire lives with a fine-tooth comb before you let them anywhere near an electronics closet.
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