It's not the civil rights act, but the immigration reform act that would be relevant here: "Employers should not ask whether or not a job applicant is a United

It's not the civil rights act, but the immigration reform act that would be relevant here: "Employers should not ask whether or not a job applicant is a United States citizen before making an offer of employment... the law prohibits employers from hiring only U.S. citizens or lawful permanent residents unless required to do so by law, regulation or government contract" [1] However, from the job listings, it sounds like that all employees would have access to regulated information, thus exempting them from the prohibition: "...U.S. citizen, permanent resident alien or otherwise able to review all export-controlled technical information." [1] http://www.eeoc.gov/laws/practices/inquiries_citizenship.cfm http://www.eeoc.gov/laws/practices/inquiries_citizenship.cfm