In this video segment adapted from 'Need to Know,' meet a fisherman who became a cleanup worker on the 2010 BP oil spill and then developed health problems. Learn about concern over the health and safety of cleanup workers because of the amount of oil and dispersant they were exposed to and the duration of exposure. Hear about how hazardous hydrocarbons reached the surface of the water and got into the air. Learn about common symptoms associated with exposure to crude oil and chemical dispersant; in addition, hear concerns about the chemicals ending up in the food chain and the unknown long-term health risks that this may pose. Includes background essay and discussion questions. [3:32]