In this Dec. 22, 2016 photo, Auguste Augustin, a "bayakou", or human waste cleaner, and his crew, haul away sacks of human waste, in Port-au-Prince, Haiti. Some of the bayakou, who are nocturnal workers, are hired by sanitation companies. But most are independent operators who empty into drainage canals in violation of the law, creating ideal conditions for the spread of cholera and other diseases. (AP Photo/Dieu Nalio Chery)
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