Keep in mind that public, as well as private buildings have HVAC systems on the roof almost exclusively, and it would be very easy for a drone to get up there unnoticed and dump a powder in front of the air intake which circulates through the entire building.
Many Links Below – Become Informed!
Feel Free To Pass On Any Posts
Pensamiento Peligroso writes the truth as he sees it, and if it upsets you, then it makes you think!
www.touchstoneconnect.com Subscribe for free – no ads!
THERE ARE 25 LINKS AT THE BOTTOM OF THIS PAGE ON THE RIGHT SIDE – OTHER REPUTABLE SITES FOR YOUR EDIFICATION INCLUDING G. Edward Griffin, John Stossel, Walter Williams, Zero Hedge to name a few.