first the conversation with sylvia long merrick -- sylvia longmire about her new tome. she's a former law first met officer and special agent peerage you spend much of her career examining border security. then we will turn to a conversation with him a award-winning actor harry hamlin. extraordinarythe roup of actors and abc's. -- abc's "mad men." . we are glad you have joined us. those conversations coming up right now. >> and by contributions to your pbs station from viewers like you. thank you. tavis: how best to defend our border with mexico, sylvia longmire a former air force officer and special agent working in the field of national security has written a new home titled "border insecurity, why big money, fences, and drones aren't making us safer." good to have you on the program. how important after all these ,ears of debate, still ongoing to challenge the conventional wisdom about this issue? becausevery frustrating we have poured so many billions of dollars into securing our borders. there is so much rhetoric on both sides of the political aisle. here we are al

. >> sylvia longmire joins us from tucson arizona. a long time analyst of the mexican drug war. sylvia good of you to join us tonight. you have worked for years on issues concerning the mexican border war. borderland points out 70,000 have been killed since former mexican president calderon, border crossings and arguably even some u.s. territory. >> they do. and that's why cross-border migration has really evolved so much in the last few years. it used to be hiring a coyote crossing the borders, the biggest thing you have to fear is perhaps the elements and perhaps getting caught by the border patrol. now you have to be worried about being targeted about the cartels who are now controlling those quie oats, being held -- coyotes, being held or executed, coyote possibly raping you murdering you leaving you for dead north of the border on u.s. territory. >> you've written that something has to be done to keep more people, all these people from dying as they're trying to reach america. borderland really hammers that home, hundreds are dying every year on u.s. territory in the deserts