"Disabled" is a broad term tha t refers to about 20 percent of Americans, says the Census Bureau. If you're one of them, you want to be smart, yet ethical, in how you handle information about your disability during a job search. In Fortune, Anne Fisher provides some insight. In addition, the disability issue requires you approach disclosure, if any, with common sense. Remember, employers are not your medical doctors. Candor can be used against you.