NPR's Martha Raddatz reports on another hearing on Capitol Hill today, discussing the effects of possible chemical exposure during the Persian Gulf War. The Pentagon announced today that it is looking for scientists to conduct more studies on how low-level exposure to chemical weapons affects both people and animals. The research is part of the Pentagon's efforts to solve the mystery of why thousands of veterans who fought in the Gulf War have suffered a range of ailments including nausea, chronic fatigue and memory loss.
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