here's the doco i was talking about. it's a big tv series from BBC about the history of Rock n Roll & they go into Hip Hop in ep 8 or 9. they do a pretty good job actually, i remember watching this on tv back in like 96 maybe. i'm sure this is where i heard Bambaataa say this but i don't know where it is in the video, you should watch it tho, it's a good doco.
edit: my bad, i skipped through this & the other parts of the Hip Hop section of that doco, doesn't look like that's the right one. good doco about Hip Hop tho, they mainly talk to Russell Simmons, Run DMC, Rick Rubin, they talk to & about the Beasties, De La Soul, NWA, then after the De La part they go into talking about Techno music.