Personally, I think if you are trying to say you didn't know distributing white powder around a populated area would cause some kind of significant concern, you're either intentionally being obtuse, or you are significantly mentally impaired.
JMNSHO.
He gave them a superior smile. "Someone passed the word to Minneapolis about the air scooper crashing. Why would a good citizen leak a national security issue."
"Maybe they didn't know it was national security?" suggested Army.
"It was out of the ordinary. It's always safest to assume that such things involve national security unless the government says otherwise."
Fallen Angels written by Larry Niven and Jerry Pournelle and Michael Flynn