Amanpour: Helen Prejean, Rob Schenck and Crawford Allan

Sister Helen Prejean, author of "River of Fire", talks about providing dignity to death row inmates in their last moments. Her religiosity and kindness inspired the Oscar winning film "Dead Man Walking". Our Michel Martin sits down with Reverend Rob Schenck, evangelical minister and author of "My Words Led to Violence. Now Trump's Are Too". Schenck was a prominent figure in an aggressive anti-abortion movement, whose words led to the fatal shooting of a doctor; after years of soul searching, he warns of the very real dangers of hate-filled rhetoric. Crawford Allan, senior director at WWF and TRAFFIC Wildlife Crime Initiative, explains the illegal cheetah trade and why their numbers are dwindling in the wild.

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