oprah winfrey or anybody else. meg oliver, cbs news. streaming on c-b-s all access.. i had a chance to interview sonequa martin-green -- >>> star trek discovery, chapter 2 is now available for all. saniquais best known for her portrayal on the walking dead. i asked her what drew her to her new role on star trek. >> there was sort of a synergy happening where i was dwrun to it and it drew to me as well. and i love a lot of things about it. i love the -- i just love the essence of "star trek." i love what it's always represented. i love the positive change it has already done. because it has diversity over the decades. that alone is so powerful and invaluable. and then, to see this particular story be told in such a deep, profound, microscopic, yet macroscopic kind of way. and then to know they were going to champion diversity, in a new way. by having me as a lead. by having a female captain, by having the first openly gay officer. i just knew this was something i wanted to be part of. it was so much more than just a good story on paper. >> they are currently available