IF you choose to record your interview, I would do it on the sly. When I was a hiring manager at a large company, we recorded all interviews and counseling/performance review sessions to cover our butts.

Don't know if it was legal, but it was insurance. Proving racial bias is going to be difficult in a hiring situation though. There are too many ways to say someone else is a better "fit" than another.

Case in point:

Large metropolitan police department I applied with. I passed all of their tests. (written, physical agility, physical fitness, background check, three interview boards, polygraph and psychological)

I was then told I did not meet the requirements of the department.

I knew my recruiter personally, and asked him off the record what happened. I was informed I needed a good tan and indoor plumbing so to speak. The department had an EEO quota to reach, and I did not fit the image.

VERY FRUSTRATING!