Tuesday, Jul. 30, 2002 | The Kojo Nnamdi Show

The stock market, the Pennsylvania mine rescue, the war on terrorism -- even summer movies. Whatever's on your mind, talk about it on this session of open phones with Kojo.

Everyone calls him "the President's science advisor" -- but John Marburger's real title is director of the White House Office of Science and Technology Policy. Few Americans know anything about this nearly 30-year-old office...