an indication that the boko haram threat is ever prison, mohamed i had us, al jazerra ba al jazerra pwaoupblg a nigeria. >>> south africa's press jacob zuma says he will tackle what he describes as the root causes of the recent wave of attacks on migrant worker, he says they include unemployment. immigration and poverty. charles stratford reports. >> reporter: he has five brothers his parents and three children to support. he's the only one in his financially with a job. he work 12 hours a day, seven days a week as a security guard in a rich johannesburg neighborhood. he lives in a township of alexandra, one of the poorest areas of the city. >> life is really rough. there are more than 40 of us sharing one toilet and a tent. the money i make is not enough to support me and my family. >> reporter: that works out to be more than 125-dollars a day which puts him above the extreme poffly lane. with all of his depend dance he cannot afford to feed himself properly. he cannot afford publicists transport either. deaf every day he has to walk three hours two to to and from work. armed half of this co

al jazerra now. in sudan polls have opened for presidential and parliamentary elections. almost all opposition parties are boycotting the vote, though. long time leader ba expect today hold on for another five-year term. >>> hundreds of refugees have crossed in to saudi arabia from yemen as saudi arabia continues their campaign. >>> 10s of thousands of people in brazil have taken to the streets for anti-government protests. they are angry about the struggling economy and the corruption scandal implicated politicians from president dilma rousseff's party. >>> hillary clinton has officially launched her 2016 u.s. presidential campaign. she's the overwhelming favorite to wilt democratic win the democratic nation and on her way to iowa the first stop for presidential hopefuls. tom ackerman reports from the state capital des moines. >> i am running for president. >> reporter: hillary clinton made the announcement without any cheering crowds or spot-hit stage. the message delivered instead in a glossy two-minute video featuring a diverse mix of middle class americans voicing their percentage hopes for the future. >> every-day americans need a champion and i w