kimberley halkett has the story. >> after losing his job 20 years although, like neighbours, this wasll that was lost for pedro to do. >> it's the worst place in the world to make a living. harvesting crops, it is dirty, you have the mosquitos and the huge downpours. >> unless the grab population returns to its former abundance, it's not work that padre wishes for his children. >> there are too many people getting grabs. you used to get several hundred, and now you have trouble getting 10. >> crabbs are one of the natural resources. three years ago the government intervened. it cree statated cooperatives i parts of the area. families that take party receive subsidies extenting for low yields. it's a programme to combat chronic poverty. >> i give it 10 out of 10. it helps with a lot of things. shoes for children. books for school. >> the government is assessing its efforts. around 10% of the brazilians live on less than $50 a month. >> it paying families to continue with traditional economic activity in a sustainable way in areas that have biological importance. this way families don't

al jazeera's kimberley halkett reports. >> reporter: after me lost his job, like his neighbours, it was all that was left to do. it's the worst place in the world to make a living. harvesting crops, they get dirty, mosquitos in the downpours that you have to work through. >> reporter: unless the crab poopulation returns, padre duds not wish for his children. he has been at it for 10 hours, and has 16 crabs to show for his efforts. >> too many peopler catching crabs. you used to get several hundred a day. now we have trouble getting 10. >> grabs are one of the devastated natural resources in the delta. until three years ago, the brazilian government intervened. instead of banning fishing and crabbing, it created cooperatives with fishing rights for the poorest and vulnerable families, allowing for harvesting in concentrated areas, where population recover in other parts of the delta. families that take part receive subsidies that compliment a low yield. part of a programme to combat poverty. >> translation: i give it 10 out of 10. it helps for a lot of things. shoes for children. books f

kimberley halkett reports. >> reporter: they came bearing signs of support to those reeling from the paris attacks. and now wanting yaens from the democratic candidates about how they prevent similar attacks in the united states. >> my heart goes out to everyone in paris. i feel a sense of loss. >> it's concerning about what will happen in the future. i want the presidential candidates to talk about what we'll do to protect our country. >> reporter: inside the debate haul the same question was arrived. bernie sanders applied that hillary clinton contributed to regional instability as a former u.s. senator. >> i would argue that the disastrous invasion of iraq, something that i strongly opposed has unravelled the region completely. >> i have said the invasion of iraq was a mistake. if we are going to tackle the problems posed by jihadi stream terrorism, we need to understand it. >> reporter: it was an exchange dominating the debate, and following had clinton's team struggling spin. >> she said that her voting for iraq was a mistake, and the lack of leadership and administration, and h