modernsurrender, are you in the defense industry, or areas of work involving sensitive areas that might concern the government? Anything involving national security? State, regional, or local security?
NOTE! The above questions are rhetorical. Do not answer them. I'm just putting my thoughts in print.
If you answer yes to any of the questions, then I could see the justification. But if not, it's your identity they are asking you to turn over to them! How precious is your identity to you?
I'm not suggesting you do or not do ANYTHING! This is just scary to me, and I share your concern. The fact that they sidestep your questions, I find.....suspicious.
This is only my opinion. And I wish the best for you.