Seriously, shut the **** up. You know, when people complain about global warming and CO2 emissions, the real issue is that you're still ******* breathing. Your existence is not worth the 3.2 seconds humanity is losing before whatever point the ocean eventually swallows us whole. Someone's going to have to invent a Doctorate of Stupidity degree if science ever decides to study you.
When an unknown substance is discovered in a government building the correct security procedure is always going to be to assume that it's dangerous and evacuate the area until it can be readily identified and the substance cleaned up. It's really ******* simple.
Now do humanity the service of ceasing all breathing activity. And be sure to live stream it so we can all celebrate the nation's independence from the most useless thing the country has seen since the cactus dildo.