How can an employer protect itself from charges of discrimination in its interview process?

We live in a very legal oriented society today and the work environment is no exception. According to the EEOC, work related discrimination charges keep increasing. For example, from 2006 to 2007, sex discrimination increased by 7%, race and national origin discrimination both increase by 12%, disability discrimination increased by 12%, and age discrimination increased by 15%. Although race discrimination increased by the lowest percentage, it represented the largest number of EEOC charges. . .

This article addresses: How an employer can protect itself from charges of discrimination in its interview process?