Houston Police Chief Art Acevedo discusses rescue and relief efforts after Hurricane Harvey and says there are challenges getting adequate resources to the city. Stephen Schork, president of the Schork Group, talks about how the $40 oil price barrier may be tested if Harvey's effects are prolonged. Bloomberg View columnist Brad Taylor, a retired Special Forces lieutenant colonel and author of "Ghosts of War" discusses how to beat North Korea at nuclear blackmail. Finally, Bob Shullman, the founder of the Shullman Research Center, talks about the latest luxury trends in the affluent world.

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