Ingrid Newkirk is the co-founder of People for the Ethical Treatment of Animals, or PETA. It may be America’s best-known animal rights organization thanks to legal sophistication, scientific seriousness, and off-the-wall publicity stunts like throwing fake blood on models wearing fur, or infiltrating a KFC chicken-supplier to publicize alleged cruelty.  They're also famous because a lot of big-name vegetarians have lent them a hand, including Alec, who narrated a documentary for PETA about animal abuse in traveling circuses, among other collaborations.  Newkirk tells the story of her transformation from the happily carnivorous daughter of an engineer in New Delhi, to deputy sheriff in Maryland, to the nation's foremost warrior against "speciesism."  Alec and Newkirk also go through all the big contemporary questions in animal rights, from hunting to animal-testing to roadside zoos, and she shares insights from her latest book about animal psychology and cognition, Animalkind.