David Kestenbaum is a correspondent for NPR, covering science, energy issues and, most recently, the global economy for NPR's multimedia project Planet Money. David has been a science correspondent for NPR since 1999. He came to journalism the usual way — by getting a Ph.D. in physics first.
Canon-making is a core part of rap fandom, the subject of endless barbershop parleys and message-board battles. But something curdles when the companies that control the music business enter the chat.