cross posted from the SF. Links incoming.
www.ar15.com/forums/topic.html?b=1&f=123&t=435392 news.yahoo.com/s/ap/capitol_evacuation;_ylt=Ak4wQ6YelZ0HKBSsnwE.UOGs0NUE;_ylu=X3oDMTA2Z2szazkxBHNlYwN0bQ-- WASHINGTON - A Capitol office building was evacuated Wednesday night on a hazardous substance alert after police discovered a suspicious powder in its attic, authorities said.
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The Homeland Security Department was investigating, but a senior counterterror official said it did not immediately appear to be an emergency.
Hazardous material teams and firefighters were dispatched to the Senate Russell Office Building after a sensor tested positive for a dangerous substance, the counterterror official said. A second test proved negative, and officials were conducting a third test in the evening for more conclusive results.
However, the official said the tests were a precautionary measure.
It was unclear what potential substances were detected, but the official said there was no indication of a nerve agent. The official spoke on condition of anonymity because of the investigation was continuing.