Why would that be? At a major defense contractor years ago, and in defense-specific departments (unclassified roles), my group of 10 had: - a Cuban-born (immi

Why would that be? At a major defense contractor years ago, and in defense-specific departments (unclassified roles), my group of 10 had: - a Cuban-born (immigrated as a child) who never renounced; - a Kuwait-born (same). (and her Iraq-born brother was in a parallel department) - a Taiwan-born, not sure when she immigrated - and the project leader was China-born (pre-revolution) Now, I can imagine that in higher-security roles, things could be stricter, but I've never seen a public job listing that said dual-citizenship was a deal-breaker.