The Pentagon, as early as this week, will release a gas into the air in Crystal City, Va., to see if its outdoor sampling equipment will be able to detect an airborne chemical or biological attack. — mb

media monarchy: pentagon to test invisible gas on crystal city, virginia
“The Pentagon is scheduled to release an odorless, invisible, and yes, harmless, gases into the city Thursday to test how quickly they spread through buildings, officials said.”

“The test is part of the military’s national security preparation for the capital area,” reports The Examiner.