the Sep 11, 2001
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Hazardous materials incident prompts Pentagon lockdown: Officials The Pentagon's systems have detected an air quality issue necessitating precautionary measures, says spokesman Sean Parnell. A hazardous materials incident put the Pentagon on lockdown on Thursday (Jun 11) as fire officials investigated the air quality issue, defence and fire officials said. "The Pentagon has sophisticated systems to ensure the safety of the building and its occupants.
Apple didn't revolutionize power supplies; new transistors did
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