Under the memorandum, Iraq is allowed legally to sell oil in exchange for food.

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After years of personal and economic struggles, she eventually set up a recycling system where families could bring their garbage to be her for recycling, in exchange for food at the local grocery store.

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The UN has around 150 international observers in Iraq, who travel across the country visiting food warehouses and other installations to check on the implementation of the UN's humanitarian programme, under which Iraq is allowed to sell oil in exchange for food, medicine and other vital supplies.

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In Ethiopia, for example, farmers receive cash and food in exchange for work on community projects through the government-led Productive Safety Nets Program, which both the U.S. and the UK support.

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