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Peru has taken over as the world's top producer of cocaine, overtaking its neighbor Colombia.
Colombia drastically reduced cocaine production there with a multi-billion dollar effort to eradicate the coca leaf that is used to produce cocaine.
The BBC's Robin Lustig traveled to Peru to see that nation's effort to stall cocaine production.
- Robin Lustig, journalist and broadcaster. He tweets @robinlustig.
This segment aired on January 15, 2014.