The trip I made to Angola to study the prehistoric contents of the gravel beds as a means of deciding the age of the deposits and their economic potential was the first time prehistory had ever been used for such a purpose.
Teenagers especially are very, very conscious about what is hip and what is lame and what is square and what is out and what is in, you know. And, I mean, I grew up right there in the middle of a black culture. And I knew dead-on what it was.

