her name is shyima hall. the book is called "hidden gir " ."nd glad toor you have you on this program. i wish under different circumstances, but i am really celebrating the work you are to raise on the national agenda this issue of human trafficking. thanks for the story. thanks for coming on. you take care. >> thanks for having me. i appreciate it. >> that's it for our show for tonight. thanks for watching, and as always, keep the faith. >> for more information on today's show, visit tavis smiley at pbs.org. tavis: hi, i'm tavis smiley. join me next time for a conversation with the caesar chavez biographer miriam pawel about the man and his legacy. that's next time. we will see you then. ♪ >> and by contributions to your pbs station from viewers like you. thank you. captioning sponsored by wpbt >> narrator: in the waters of the western atlantic and caribbean, a voracious alien predator has taken hold. >> we have never before seen a marine invasion of this magnitude or this scale. >> narrator: lionfish are indigenous to the indo-pacific. >> the