This is a pretty interesting clip from a documentary on hip hop called Beat This. In 1984 New York graffiti artist Brim talked about the Vandal Squad, Mayor Koch and New York's finest having a problem with things they can't control.

Beat This was directed by Dick Fontaine and includes footage of Afrika Bambaataa, DJ Kool Herc (and his original dance parties), The Cold Crush Brothers, Jazzy Jay and many more.