Find an FBI surveillance memo or reference to it.

Between 5 and 10 yrs ago, I heard a man on an internet radio show reference an FBI document uncovered by FOIA that stated that black power organizations of the 1960s and 1970w were ranked in threat potential according to how well black women were incorporated into membership and leadership. I need help finding that memo or any audio or text reference to that memo. It might be as simple as an FOIA request.