[Scaless]

In a proper system this is something that should be self-reported and not handled by the employer. An example:

$Employer gives you a form to fill out with your disabilities and their Employer ID#. You fill out the form (if you get hired) and send it to $GovernmentAgency yourself. $Employer lets $GovernmentAgency know that they hired you. $GovernmentAgency gives a quarterly statement to $Employer without any specific information tied to individuals.

Same thing with race, sex, age, and all the other affirmative action qualifiers. These are really things that employers should not know or care about in the hiring process.

As it is, don't feel bad about lying on the forms with stuff like this. The system is rigged against you, don't give them any more ground if you don't have to.