tania, thank you. >>> the u.s. president barack obama has announced 102 nations ratified a treaty on the protection of nuclear material. the revelations came as the leaders and top-ranked diplomats gathered in washington, d.c. for a nuclear security summit. safeguarding the world from the threat of nuclear terrorism. securing so-called vulnerable atomic material is top of the agenda. part of the discussions are expected to center on whether the islamic state of the iraq and levant fighters could target nuclear energy infrastructure and use the fuel to make so-called dirty bombs. barack obama is pushing a significant reduction of nuclear weapons stockpiles. russia and the u.s., just the two of them, hold more than 90% of the nuclear arsenal left over from the cold war. there are concerns that russia's absence from the talks will hinder any real progress. moscow is refusing to take part because of recent increased tensions with the u.s. for more on this we're joined by rosalynn jordan at that summit in washington, d.

let's speak to our correspondent tania page.hat did you name of jacob zuma's words. >> i think i completely agree with you. he's been at pain over what sa lengthy address for the president. at short notice for the public, broadcast live to south africans. at pains to emphasise his defensiveness on the case, which it has to be said over the last couch of years in which the reports came out, in which findings were that the president was liable for a portion of millions of dollars spent on non-security upgrades. he'd been dismiss if of that and was accused of using the african congress massive major city in parliament as a womb, having to abide buy her rulings, things like a report that what looks like a swimming pool was a fire reservoir in case there was a flame. excuses upon excuses. a parliamentary committee exonerated him. these are things that the constitutional court was damning of. richard found the president and the national assembly was guilty of violating the constitution. briefly, if you can, are we to hear a reaction t

tania page now rights. >> reporter: in her small shop, this woman makes her bread. things are getting more difficult. the drought is now even hitting people in the cities. the average prize of a bag of maze has risen by almost a quarter. potatoes cost 29% more, and the price of sunflower oil has soared. >> translator: if i were to increase prices, my customers will walk away. they are already complaining. they say food is expensive. they cannot afford, because people in the townships have no jobs. >> reporter: for months they have been warning parliament that this could trigger riots. the country will have to import more food, but that is difficult too. >> we are expecting to see further increases in the next three months or so, but what is more painful is that these increases are likely to be sustained up until mid-2017. >> reporter: the world food program says up to 50 million people may be effected across the region. these kids are giving thanks for what little they have. 20 children live here at the center, but another 30 come for lunch every day, because their

tania caught up with sir phillip green at the launch of top shop and beyonce's new brand, ivy park. she asked him what he thought of the panama papers scandal. >> where's panama? i don't want to get involved in that. it is what it is. let's stick to fashion. it's more fun. >> can you blame -- can anyone take the blame, really, for that, or do you feel anyone should? >> i don't think it's about blame. everybody sort of suddenly -- sort of everybody sets up their businesses or people set things up in a certain way. do people go out and set things up illegally? i wouldn't have thought so. but people take different views. they say two views make a market. >> but everyone's always interested in your view. >> i don't have a view. i don't know enough about it. i'm not involved in panama. so we'll stay there. >> so he didn't really want to talk about the panama papers. >> absolutely. and look, we were there to talk about ivy park, the launch. he was launching his new partnership with beyonce. so of course that's what we were there to talk about. i did ask him about what he thought about pan

let's speak to our correspondent tania page. what did you name of jacob zuma's words. >> i think i completely agree with you. he's been at pain over what sa lengthy address for the president. at short notice for the public, broadcast live to south africans. at pains to emphasise his defensiveness on the case, which it has to be said over the last couch of years in which the reports came out, in which findings were that the president was liable for a portion of millions of dollars spent on non-security upgrades. he'd been dismiss if of that and was accused of using the african congress massive major city in parliament as a womb, having to abide buy her rulings, things like a report that what looks like a swimming pool was a fire reservoir in case there was a flame. excuses upon excuses. a parliamentary committee exonerated him. these are things that the constitutional court was damning of. richard found the president and the national assembly was guilty of violating the constitution. briefly, if you can, are we to hear a reaction

. >>> i'm tania page in south africa, where rising food prices mean many families are struggling to putood on the table. ♪ >>> the european union says it is looking at changing asylum seeker rules to better share the burden of accommodating refugees. the commissioner says a deal with turkey to return refugees from greece will be scaled up. harry fawcett witnessed one attempt of the refugees off of the turkish coast. >> reporter: you hear it before you see it. anxiety, exhaustion, desperation. so many children have drowned making this journey, yet more still come. even if this is one of the rare life jackets that actually floats, it's of no use for the tiny body inside. others make due with rubber tubes, even then not everybody is wearing them. these are iraqi families who probably paid hundreds of dollars a head for passage to the greek island of lesvos, but the boat is too small. this is how families are separated in a moment. he can only call out, look after the woman. it has been a chaotic few minutes here. the message from the e.u. from turkey, and greece is these kind of voyages ar

. >>> i'm tania page in south africa, where rising food

tania: we've seen a wave of violence at least since october or september last year. it all started more or less with tensions over the holy sites in the old city in jerusalem and then we had stabbings and car rammings and shootings but also demonstrations and protests in the occupied west bank and gaza, mainly palestinian against security forces. this comes on top of the overall failure to find a political solution to this situation and there's no sense that something will change any time soon. brent: tannia, thank you very much. brazilian president dilma rousseff's last hopes of staying in office may be slipping away. the country's lower house of congress has voted to impeach her over the alleged fixing of government accounts. now there are signs that her support in the senate is also evaporating. that is vital because it has the final say on whether she'll be forced to stand down. brazil's media, as you might expect, are having a field day with this. here's more. reporter: the morning after the president's crushing defeat in congress brought a scathing verdict from

. >> patty hearst claims now she has become tania x, newest recruit in the symbionese liberation army i've changed and i can never go back to the life i led before. >> at least initially there's widespread skepticism that patty hearst would join this group. it wasn't until she actually showed up in the middle of an sla bank robbery with a machine gun that suddenly all the country and all the world realize that this heiress was now part of an underground terrorist group. >> she held that weapon like she would use it? >> yes, absolutely. i thought she would any minute. >> people really didn't understand at this time the hostage reaction. the term "stockholm syndrome" hadn't yet become current. >> it was a fascinating case in stockholm last year, you recall it, there was a bank robbery in stockholm. one of the women who was held hostage is waiting for the robber to get out of jail to marry him. >> what? >> just this traumatic experience in which the individual is reduced to total helplessness and begins to identify in a human sense with the captor. >> good evening. patty hearst has been

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