Is it a violation of the Americans with Disabilities Act (ADA) to require employees to have a high school diploma?

On November 17, 2011, the EEOC issued an informal discussion letter about how the ADA applies to qualification standards for jobs. The letter can be found at http://www.eeoc.gov/eeoc/foia/letters/2011/ada_qualification_standards.html. There has been significant commentary and conjecture about the meaning and scope of the letter. To quell such speculation, the EEOC has provided the following answers to common questions: Question: Have you just made it illegal for businesses...