By Neil deGrasse Tyson
Published March 28, 2013 4:10pm
Although many people debate about the use of animals in science and civilization, few argue as adamantly against their use than our guest, Ingrid Newkirk, co-founder and president of PETA.
Subscribe to SiriusXM Podcasts+ on Apple Podcasts to listen to new episodes ad-free and a whole week early.