Can employer require resume and bio after 5 years employment

Do you have an employment contract (which can be a union contract or can sometimes come from an employee manual) which provides either that you will be employed for a definite term or that you can only be fired for certain specified reasons (which, in any case, would probably include disobeying the orders of a superior)?  Do you believe that you are being discriminated against because of your race, gender, religion, etc.?  If not, you are employed at will, and can be fired at any time for any reason, including refusing to provide a resume and biography.