Charles and David Koch Revealed: Game Changers

June 7 (Bloomberg) -- "Bloomberg Game Changers" profiles Charles and David Koch, brothers who built a multimillion-dollar fortune running Koch Industries Inc. This program includes interviews with John Damgard, David Koch's high school classmate, Ed Clark, the 1980 Libertarian Party presidential candidate who chose David as his running mate and John Farrell, senior reporter at the Center for Public Integrity. (Source: Bloomberg)