biological weapons biological weapons

These photographs, taken at the Naval Research Laboratory in Washington, D.C., show the forearms of several test subjects after they were exposed to nitrogen mustard and lewisite agents during World War II experiments conducted at the lab. Naval Research Laboratory hide caption

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Naval Research Laboratory

Experiments that showed how to make the H5N1 bird flu virus more contagious raised concern about malicious misuse of laboratory research. Science Photo Library/Getty Images hide caption

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Science Photo Library/Getty Images

Students at the University of Washington used a protein-folding program initially funded by the Defense Advanced Research Projects Agency to come up with a treatment for celiac disease. DARPA hide caption

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