zlacker

Even if that weren't a requirement, you aren't going to be able to to get clearance without citizenship:

> Non-U.S. citizens do not qualify for a security clearance. [1]

So it's a fairly moot point. That being said, there are plenty of positions that can disqualify you for non-citizenship for protected information. Healthcare, government contractors, etc. Your right to work in the US is protected, your right to a job is not.

1 - https://www.dcsa.mil/mc/isd/int/security/