fromuntland in northeastern somalia, special correspondent jane ferguson and videographer alessandroone report our weekly look at the leading edge of science. >> reporter: dry, dusty, parched: desert sand is slowly taking over somalia, devastating the lands. >> this is the channels that the water flows. reporter: so water should be flowing along here, when it rains? >> yes, it has two or three water channels and then it becomes full or half f depending on the quantity of rain. >> reporter: ahmed alishire runs the regional government's ministry of livestock. he showed us how people here in the puntland area used to store precious rainwater, in the days before the rains stopped comingg how ave water tanks like the been empty? >> in this location it has been empty for three >> reporter: three years? >> yes, three years. >> reporter: a crippliught in somalia shows no sign of easing. and it keeps happeningjust six years after the last major ght emergency, the rains have failed again. temperatures have risen in east africa or the last three decades, and a report by the u.k.-based charity o

with me now for more on this tinderbox is special correspondent jane ferguson,ve whom we he pleasure of hosting here in studio on a visit from her home base in beirut. jane, it's good to have you us with. there has been more talk recently of a posn ble war betwrael and hezbollah. what does it lookike? >> we've been hearing this talk for several years now. it now appears both sides seetom ct knock that a war could be himing, may even be an inevitability, andis because, of course, hezbollah have been growing in strwiength the war in syria. they've been gaining a huge amount of military epertise there and experience, and from the israeli perspective, that strength that is unacceptable to them is very much so focused on the missiles that hezbollah have. israel sees these as an exest cell research threat.t. luenceiran's reaching right across to the mediterranean. that's what they really want to secure. but it ao means that israel feels increasingly encircled. there were: so a war, what would it look like? how would this be different from wh we saw in 2006? >> the reason that it would be di

for the pbs newshour, i'm jane ferguson, in mogadishu, somalia. >> woodruff: now, a new documentary serieswcases the and the many effects of the nation's opioids crisis. roe centers for disease co and prevention reported yesterday that emergency room visits for suspected opioid overdoses were up 30% compared with the year be the series puts a human face on this crisis. rey brown has that story, part of our ongoing corage of this issueica addicted. >> brown: the series is called "the trade" and explhe opioid crisis in five parts ande from multiple pectives: the cartels growing poppies and producing heroin in the mexican highlands. american drug enforcement agents trying to stem the flow of heroin and synthetic opioids into ohio. and active users and their families struging with addiction in georgia. >> drugs not in my neighborhood. >> this stuff is everywhere. you know, access is everything. ccess is everything and the way to get access is to developing you know deep, deep trust with our subjects, and that happens through a number of >> brown: matthew heineman directed "the trade" and recen

jane ferguson, really good to have you here in the states for a while. we look forward to me of your reporting from over there. >> thanks. >> woodruff: now to a surprising way to make money: the sneaker resale market, where used nikes and adidas can sell for hundreds, sometimes thousands of dollars. our economics correspondent paul solman has the story. it's part of our series, "making sense" which airs every thursday. >> reporter: in the back of new york's javits convention center buyers and sellers, teenage boys, mostly, haggled in the trading pit.10 >> 2 210! >> reporter: here's one of the hottest marketknin america i almost nothing about: sneakers. >> this weekend we're gonna have 20,000 people. >> reporter: when yu-ming wu founded sneakercon nine years ago, just 800 people showed up. this year eight conventions of so-called "sneakerhands" are d around the country; new york's is the biggest. >> we created this space for anyone to come in to buy a pair of sneakers, to sell a pair sn kers, or trade a pair of sneakers. >> reporter: so in a sense, this i

the onus and his marriage to jane wilde focused him in a way that could we have expected that otherwise? amy: kitty ferguson want to thank you. we will do part two of this discussion. we will post it online at democracynow.org. kitty ferguson, the author of stephen hawking, including "stephen hawking: an unfettered mind" and "stephen hawking: quest for a theory of everything." stephen hawking will be remembered tomorrow at his funeral in britain. a very happy birthday to mike burke! breaking news out of gaza. the palestinian health ministry says at least five people have been killed by israeli soldiers and some 350 others injured, many of them by live bullets. the deaths come as gaza residents built a tent city near the wall as part of a planned six-week long protest kicking off today, which is known as land day. democracy now! is looking for feedback from people who appreciate the closed captioning. e-mail your comments to outreach@democracynow.org or mail them to democracy now! p.o. box 693 new york, new york 10013. [captioning made possible by democracy now!] [exotic music] ♪ - "the cooking odyssey" is m