"Currently, we have identified no infectious agent common to all of the cases, " the statement said, adding that no evidence exists that the cases were caused by exposure to chemical or biological weapons, SARS or environmental toxins.

CNN: Army hunts cause of pneumonia in troops

Examples: Sensors to sniff potential chemical weapons will improve industrial processes and environmental monitoring.

FORBES: The Security-Industrial Complex

He led a comprehensive review of our nuclear weapons stockpile stewardship program, enhanced the science and technology of environmental cleanup, and was the DOE special negotiator for Russia initiatives, focusing on disposal of Soviet-era nuclear materials.

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