FMLA/ADA/Affirmative Action

If the Civil Rights Act exists to protect our rights in the workplace, then why does Affirmative Action exist and what is it? Secondly, within the Civil Rights Act, we are protected against discrimination, yet more and more acts are required to protect individual's rights, such as the American Disability Act (ADA), and the Family Medical Leave Act (FMLA). This implies that employees are still segregating, and discriminating, in spite of the Civil Rights Act, so what are the additional rights these acts provide? Under the ADA, can a blind person get any job they desire, and does anyone q…