employment law- asking for ID?

Your employer should have your address, date of birth, and social security number on file... if they wanted to do some damage, believe me, they already have all the information they need. Many employers look at credit reports/scores as part of a hiring decision and THAT'S legal.

Yes it is legal. An employer is supposed to re-verify eligibility for employment in the U.S. every so many years. Sounds like your employer is preparing an EEO-1 report and they need certain information for that purpose.

Like some of the posting state here, if they wanted that information it's already in their files.

Your drivers license is proof of citizenship.

Yes, it is legal.

Your company has a legal obligation to verify your citizenship.

PS: They already have your Social Security Number and your birthdate.

Tell your employer to look at your file. Every employer is suppose to have a copy of your identification on it. That is where they can gather census information.

The only way I can see this being at all legit is if you are working on a very classified government contract.

I hope you can have a discussion with HR or your security officer to explain the reasons for the disclosure.

Yes, an employer can make any reasonable request of its employees. This seems to be reasonable.

yes for most jobs, they ask for a copy of your id